Home / 903,436.61-1,355,355.36-272,304.86

Finding the Fourth Proportional to 903,436.61, 1,355,355.36 and 272,304.86

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Solution

The fourth proportional to 903,436.61, 1,355,355.36 and 272,304.86 is: 408,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,436.61 : 1,355,355.36 = 272,304.86 : x
  2. Step 2: Convert to fraction form
    903,436.61/1,355,355.36 = 272,304.86/x
  3. Step 3: Cross multiply
    903,436.61x = 1,355,355.36 × 272,304.86
  4. Step 4: Simplify right side
    903,436.61x = 369,069,844,778.27
  5. Step 5: Solve for x
    x = 369,069,844,778.27/903,436.61
  6. Step 6: Final answer
    x = 408,517.70

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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.