Home / 985,586.38-1,478,391.41-386,829.52

Finding the Fourth Proportional to 985,586.38, 1,478,391.41 and 386,829.52

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Solution

The fourth proportional to 985,586.38, 1,478,391.41 and 386,829.52 is: 580,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,586.38 : 1,478,391.41 = 386,829.52 : x
  2. Step 2: Convert to fraction form
    985,586.38/1,478,391.41 = 386,829.52/x
  3. Step 3: Cross multiply
    985,586.38x = 1,478,391.41 × 386,829.52
  4. Step 4: Simplify right side
    985,586.38x = 571,885,439,502.42
  5. Step 5: Solve for x
    x = 571,885,439,502.42/985,586.38
  6. Step 6: Final answer
    x = 580,248.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.