Home / 438,590.72-605,541.12-268,918.40

Finding the Fourth Proportional to 438,590.72, 605,541.12 and 268,918.40

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Solution

The fourth proportional to 438,590.72, 605,541.12 and 268,918.40 is: 371,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,590.72 : 605,541.12 = 268,918.40 : x
  2. Step 2: Convert to fraction form
    438,590.72/605,541.12 = 268,918.40/x
  3. Step 3: Cross multiply
    438,590.72x = 605,541.12 × 268,918.40
  4. Step 4: Simplify right side
    438,590.72x = 162,841,149,124.61
  5. Step 5: Solve for x
    x = 162,841,149,124.61/438,590.72
  6. Step 6: Final answer
    x = 371,282.71

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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.