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Finding the Fourth Proportional to 618,051.52, 925,509.12 and 517,948.48

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Solution

The fourth proportional to 618,051.52, 925,509.12 and 517,948.48 is: 775,608.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,051.52 : 925,509.12 = 517,948.48 : x
  2. Step 2: Convert to fraction form
    618,051.52/925,509.12 = 517,948.48/x
  3. Step 3: Cross multiply
    618,051.52x = 925,509.12 × 517,948.48
  4. Step 4: Simplify right side
    618,051.52x = 479,366,041,930.14
  5. Step 5: Solve for x
    x = 479,366,041,930.14/618,051.52
  6. Step 6: Final answer
    x = 775,608.55

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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.