Home / 726,665.76-1,001,759.47-511,136.91

Finding the Fourth Proportional to 726,665.76, 1,001,759.47 and 511,136.91

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Solution

The fourth proportional to 726,665.76, 1,001,759.47 and 511,136.91 is: 704,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,665.76 : 1,001,759.47 = 511,136.91 : x
  2. Step 2: Convert to fraction form
    726,665.76/1,001,759.47 = 511,136.91/x
  3. Step 3: Cross multiply
    726,665.76x = 1,001,759.47 × 511,136.91
  4. Step 4: Simplify right side
    726,665.76x = 512,036,238,781.20
  5. Step 5: Solve for x
    x = 512,036,238,781.20/726,665.76
  6. Step 6: Final answer
    x = 704,637.91

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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.