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Finding the Fourth Proportional to 585,072.86, 807,160.10 and 355,593.18

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Solution

The fourth proportional to 585,072.86, 807,160.10 and 355,593.18 is: 490,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,072.86 : 807,160.10 = 355,593.18 : x
  2. Step 2: Convert to fraction form
    585,072.86/807,160.10 = 355,593.18/x
  3. Step 3: Cross multiply
    585,072.86x = 807,160.10 × 355,593.18
  4. Step 4: Simplify right side
    585,072.86x = 287,020,621,923.30
  5. Step 5: Solve for x
    x = 287,020,621,923.30/585,072.86
  6. Step 6: Final answer
    x = 490,572.44

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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.