Home / 730,215.08-1,007,685.70-407,929.80

Finding the Fourth Proportional to 730,215.08, 1,007,685.70 and 407,929.80

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Solution

The fourth proportional to 730,215.08, 1,007,685.70 and 407,929.80 is: 562,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,215.08 : 1,007,685.70 = 407,929.80 : x
  2. Step 2: Convert to fraction form
    730,215.08/1,007,685.70 = 407,929.80/x
  3. Step 3: Cross multiply
    730,215.08x = 1,007,685.70 × 407,929.80
  4. Step 4: Simplify right side
    730,215.08x = 411,065,026,063.86
  5. Step 5: Solve for x
    x = 411,065,026,063.86/730,215.08
  6. Step 6: Final answer
    x = 562,936.92

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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.