Home / 920,384.88-1,380,726.88-272,026.86

Finding the Fourth Proportional to 920,384.88, 1,380,726.88 and 272,026.86

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Solution

The fourth proportional to 920,384.88, 1,380,726.88 and 272,026.86 is: 408,084.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,384.88 : 1,380,726.88 = 272,026.86 : x
  2. Step 2: Convert to fraction form
    920,384.88/1,380,726.88 = 272,026.86/x
  3. Step 3: Cross multiply
    920,384.88x = 1,380,726.88 × 272,026.86
  4. Step 4: Simplify right side
    920,384.88x = 375,594,791,826.20
  5. Step 5: Solve for x
    x = 375,594,791,826.20/920,384.88
  6. Step 6: Final answer
    x = 408,084.49

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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.