Home / 730,070.60-1,007,486.78-407,785.24

Finding the Fourth Proportional to 730,070.60, 1,007,486.78 and 407,785.24

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Solution

The fourth proportional to 730,070.60, 1,007,486.78 and 407,785.24 is: 562,737.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,070.60 : 1,007,486.78 = 407,785.24 : x
  2. Step 2: Convert to fraction form
    730,070.60/1,007,486.78 = 407,785.24/x
  3. Step 3: Cross multiply
    730,070.60x = 1,007,486.78 × 407,785.24
  4. Step 4: Simplify right side
    730,070.60x = 410,838,238,379.13
  5. Step 5: Solve for x
    x = 410,838,238,379.13/730,070.60
  6. Step 6: Final answer
    x = 562,737.68

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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.