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Finding the Fourth Proportional to 565,910.02, 780,948.06 and 307,781.35

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Solution

The fourth proportional to 565,910.02, 780,948.06 and 307,781.35 is: 424,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,910.02 : 780,948.06 = 307,781.35 : x
  2. Step 2: Convert to fraction form
    565,910.02/780,948.06 = 307,781.35/x
  3. Step 3: Cross multiply
    565,910.02x = 780,948.06 × 307,781.35
  4. Step 4: Simplify right side
    565,910.02x = 240,361,248,186.68
  5. Step 5: Solve for x
    x = 240,361,248,186.68/565,910.02
  6. Step 6: Final answer
    x = 424,734.04

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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.