Home / 711,619.98-981,938.64-425,079.24

Finding the Fourth Proportional to 711,619.98, 981,938.64 and 425,079.24

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Solution

The fourth proportional to 711,619.98, 981,938.64 and 425,079.24 is: 586,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,619.98 : 981,938.64 = 425,079.24 : x
  2. Step 2: Convert to fraction form
    711,619.98/981,938.64 = 425,079.24/x
  3. Step 3: Cross multiply
    711,619.98x = 981,938.64 × 425,079.24
  4. Step 4: Simplify right side
    711,619.98x = 417,401,730,817.83
  5. Step 5: Solve for x
    x = 417,401,730,817.83/711,619.98
  6. Step 6: Final answer
    x = 586,551.45

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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.