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Finding the Fourth Proportional to 478,535.47, 717,909.64 and 208,707.24

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Solution

The fourth proportional to 478,535.47, 717,909.64 and 208,707.24 is: 313,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,535.47 : 717,909.64 = 208,707.24 : x
  2. Step 2: Convert to fraction form
    478,535.47/717,909.64 = 208,707.24/x
  3. Step 3: Cross multiply
    478,535.47x = 717,909.64 × 208,707.24
  4. Step 4: Simplify right side
    478,535.47x = 149,832,942,878.17
  5. Step 5: Solve for x
    x = 149,832,942,878.17/478,535.47
  6. Step 6: Final answer
    x = 313,107.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.