Home / 711,655.02-981,986.90-425,114.28

Finding the Fourth Proportional to 711,655.02, 981,986.90 and 425,114.28

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Solution

The fourth proportional to 711,655.02, 981,986.90 and 425,114.28 is: 586,599.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,655.02 : 981,986.90 = 425,114.28 : x
  2. Step 2: Convert to fraction form
    711,655.02/981,986.90 = 425,114.28/x
  3. Step 3: Cross multiply
    711,655.02x = 981,986.90 × 425,114.28
  4. Step 4: Simplify right side
    711,655.02x = 417,456,653,962.93
  5. Step 5: Solve for x
    x = 417,456,653,962.93/711,655.02
  6. Step 6: Final answer
    x = 586,599.75

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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.