Home / 730,475.40-1,008,036.69-408,188.16

Finding the Fourth Proportional to 730,475.40, 1,008,036.69 and 408,188.16

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Solution

The fourth proportional to 730,475.40, 1,008,036.69 and 408,188.16 is: 563,288.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,475.40 : 1,008,036.69 = 408,188.16 : x
  2. Step 2: Convert to fraction form
    730,475.40/1,008,036.69 = 408,188.16/x
  3. Step 3: Cross multiply
    730,475.40x = 1,008,036.69 × 408,188.16
  4. Step 4: Simplify right side
    730,475.40x = 411,468,641,703.59
  5. Step 5: Solve for x
    x = 411,468,641,703.59/730,475.40
  6. Step 6: Final answer
    x = 563,288.84

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Double scale
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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.