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Finding the Fourth Proportional to 539,483.67, 744,505.92 and 310,083.57

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Solution

The fourth proportional to 539,483.67, 744,505.92 and 310,083.57 is: 427,925.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,483.67 : 744,505.92 = 310,083.57 : x
  2. Step 2: Convert to fraction form
    539,483.67/744,505.92 = 310,083.57/x
  3. Step 3: Cross multiply
    539,483.67x = 744,505.92 × 310,083.57
  4. Step 4: Simplify right side
    539,483.67x = 230,859,053,559.73
  5. Step 5: Solve for x
    x = 230,859,053,559.73/539,483.67
  6. Step 6: Final answer
    x = 427,925.93

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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.