Home / 875,443.10-1,312,387.05-520,079.90

Finding the Fourth Proportional to 875,443.10, 1,312,387.05 and 520,079.90

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Solution

The fourth proportional to 875,443.10, 1,312,387.05 and 520,079.90 is: 779,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,443.10 : 1,312,387.05 = 520,079.90 : x
  2. Step 2: Convert to fraction form
    875,443.10/1,312,387.05 = 520,079.90/x
  3. Step 3: Cross multiply
    875,443.10x = 1,312,387.05 × 520,079.90
  4. Step 4: Simplify right side
    875,443.10x = 682,546,125,725.30
  5. Step 5: Solve for x
    x = 682,546,125,725.30/875,443.10
  6. Step 6: Final answer
    x = 779,657.90

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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.