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Finding the Fourth Proportional to 658,001.80, 987,261.90 and 258,574.60

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Solution

The fourth proportional to 658,001.80, 987,261.90 and 258,574.60 is: 387,963.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,001.80 : 987,261.90 = 258,574.60 : x
  2. Step 2: Convert to fraction form
    658,001.80/987,261.90 = 258,574.60/x
  3. Step 3: Cross multiply
    658,001.80x = 987,261.90 × 258,574.60
  4. Step 4: Simplify right side
    658,001.80x = 255,280,850,887.74
  5. Step 5: Solve for x
    x = 255,280,850,887.74/658,001.80
  6. Step 6: Final answer
    x = 387,963.76

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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.