Home / 915,701.10-1,372,579.65-442,077.90

Finding the Fourth Proportional to 915,701.10, 1,372,579.65 and 442,077.90

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Solution

The fourth proportional to 915,701.10, 1,372,579.65 and 442,077.90 is: 662,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,701.10 : 1,372,579.65 = 442,077.90 : x
  2. Step 2: Convert to fraction form
    915,701.10/1,372,579.65 = 442,077.90/x
  3. Step 3: Cross multiply
    915,701.10x = 1,372,579.65 × 442,077.90
  4. Step 4: Simplify right side
    915,701.10x = 606,787,129,254.74
  5. Step 5: Solve for x
    x = 606,787,129,254.74/915,701.10
  6. Step 6: Final answer
    x = 662,647.59

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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.