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Finding the Fourth Proportional to 711,422.51, 981,752.35 and 424,887.24

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Solution

The fourth proportional to 711,422.51, 981,752.35 and 424,887.24 is: 586,337.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,422.51 : 981,752.35 = 424,887.24 : x
  2. Step 2: Convert to fraction form
    711,422.51/981,752.35 = 424,887.24/x
  3. Step 3: Cross multiply
    711,422.51x = 981,752.35 × 424,887.24
  4. Step 4: Simplify right side
    711,422.51x = 417,134,046,355.01
  5. Step 5: Solve for x
    x = 417,134,046,355.01/711,422.51
  6. Step 6: Final answer
    x = 586,337.99

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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.