Home / 738,149.67-1,018,646.55-398,617.92

Finding the Fourth Proportional to 738,149.67, 1,018,646.55 and 398,617.92

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Solution

The fourth proportional to 738,149.67, 1,018,646.55 and 398,617.92 is: 550,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,149.67 : 1,018,646.55 = 398,617.92 : x
  2. Step 2: Convert to fraction form
    738,149.67/1,018,646.55 = 398,617.92/x
  3. Step 3: Cross multiply
    738,149.67x = 1,018,646.55 × 398,617.92
  4. Step 4: Simplify right side
    738,149.67x = 406,050,768,976.18
  5. Step 5: Solve for x
    x = 406,050,768,976.18/738,149.67
  6. Step 6: Final answer
    x = 550,092.73

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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.