Home / 875,387.15-1,313,195.55-342,838.97

Finding the Fourth Proportional to 875,387.15, 1,313,195.55 and 342,838.97

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Solution

The fourth proportional to 875,387.15, 1,313,195.55 and 342,838.97 is: 514,303.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,387.15 : 1,313,195.55 = 342,838.97 : x
  2. Step 2: Convert to fraction form
    875,387.15/1,313,195.55 = 342,838.97/x
  3. Step 3: Cross multiply
    875,387.15x = 1,313,195.55 × 342,838.97
  4. Step 4: Simplify right side
    875,387.15x = 450,214,609,770.58
  5. Step 5: Solve for x
    x = 450,214,609,770.58/875,387.15
  6. Step 6: Final answer
    x = 514,303.43

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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.