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Finding the Fourth Proportional to 618,521.46, 927,962.01 and 258,862.02

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Solution

The fourth proportional to 618,521.46, 927,962.01 and 258,862.02 is: 388,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,521.46 : 927,962.01 = 258,862.02 : x
  2. Step 2: Convert to fraction form
    618,521.46/927,962.01 = 258,862.02/x
  3. Step 3: Cross multiply
    618,521.46x = 927,962.01 × 258,862.02
  4. Step 4: Simplify right side
    618,521.46x = 240,214,120,391.86
  5. Step 5: Solve for x
    x = 240,214,120,391.86/618,521.46
  6. Step 6: Final answer
    x = 388,368.29

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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.