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Finding the Fourth Proportional to 509,520.88, 703,123.56 and 291,722.32

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Solution

The fourth proportional to 509,520.88, 703,123.56 and 291,722.32 is: 402,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,520.88 : 703,123.56 = 291,722.32 : x
  2. Step 2: Convert to fraction form
    509,520.88/703,123.56 = 291,722.32/x
  3. Step 3: Cross multiply
    509,520.88x = 703,123.56 × 291,722.32
  4. Step 4: Simplify right side
    509,520.88x = 205,116,836,169.86
  5. Step 5: Solve for x
    x = 205,116,836,169.86/509,520.88
  6. Step 6: Final answer
    x = 402,568.07

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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.