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Finding the Fourth Proportional to 478,206.72, 660,033.36 and 363,802.32

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Solution

The fourth proportional to 478,206.72, 660,033.36 and 363,802.32 is: 502,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,206.72 : 660,033.36 = 363,802.32 : x
  2. Step 2: Convert to fraction form
    478,206.72/660,033.36 = 363,802.32/x
  3. Step 3: Cross multiply
    478,206.72x = 660,033.36 × 363,802.32
  4. Step 4: Simplify right side
    478,206.72x = 240,121,667,645.40
  5. Step 5: Solve for x
    x = 240,121,667,645.40/478,206.72
  6. Step 6: Final answer
    x = 502,129.43

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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.