Home / 730,320.48-1,007,784.72-408,005.28

Finding the Fourth Proportional to 730,320.48, 1,007,784.72 and 408,005.28

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Solution

The fourth proportional to 730,320.48, 1,007,784.72 and 408,005.28 is: 563,015.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,320.48 : 1,007,784.72 = 408,005.28 : x
  2. Step 2: Convert to fraction form
    730,320.48/1,007,784.72 = 408,005.28/x
  3. Step 3: Cross multiply
    730,320.48x = 1,007,784.72 × 408,005.28
  4. Step 4: Simplify right side
    730,320.48x = 411,181,486,863.32
  5. Step 5: Solve for x
    x = 411,181,486,863.32/730,320.48
  6. Step 6: Final answer
    x = 563,015.14

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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.