Home / 730,219.12-1,007,666.40-407,865.04

Finding the Fourth Proportional to 730,219.12, 1,007,666.40 and 407,865.04

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Solution

The fourth proportional to 730,219.12, 1,007,666.40 and 407,865.04 is: 562,833.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,219.12 : 1,007,666.40 = 407,865.04 : x
  2. Step 2: Convert to fraction form
    730,219.12/1,007,666.40 = 407,865.04/x
  3. Step 3: Cross multiply
    730,219.12x = 1,007,666.40 × 407,865.04
  4. Step 4: Simplify right side
    730,219.12x = 410,991,896,542.66
  5. Step 5: Solve for x
    x = 410,991,896,542.66/730,219.12
  6. Step 6: Final answer
    x = 562,833.66

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.