Home / 893,432.20-1,340,385.90-387,776.20

Finding the Fourth Proportional to 893,432.20, 1,340,385.90 and 387,776.20

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Solution

The fourth proportional to 893,432.20, 1,340,385.90 and 387,776.20 is: 581,767.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,432.20 : 1,340,385.90 = 387,776.20 : x
  2. Step 2: Convert to fraction form
    893,432.20/1,340,385.90 = 387,776.20/x
  3. Step 3: Cross multiply
    893,432.20x = 1,340,385.90 × 387,776.20
  4. Step 4: Simplify right side
    893,432.20x = 519,769,750,835.58
  5. Step 5: Solve for x
    x = 519,769,750,835.58/893,432.20
  6. Step 6: Final answer
    x = 581,767.43

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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.