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Finding the Fourth Proportional to 526,732.80, 789,580.80 and 260,534.40

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Solution

The fourth proportional to 526,732.80, 789,580.80 and 260,534.40 is: 390,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,732.80 : 789,580.80 = 260,534.40 : x
  2. Step 2: Convert to fraction form
    526,732.80/789,580.80 = 260,534.40/x
  3. Step 3: Cross multiply
    526,732.80x = 789,580.80 × 260,534.40
  4. Step 4: Simplify right side
    526,732.80x = 205,712,959,979.52
  5. Step 5: Solve for x
    x = 205,712,959,979.52/526,732.80
  6. Step 6: Final answer
    x = 390,545.19

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1.5x scale

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.