Home / 870,340.52-1,201,066.70-488,366.40

Finding the Fourth Proportional to 870,340.52, 1,201,066.70 and 488,366.40

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Solution

The fourth proportional to 870,340.52, 1,201,066.70 and 488,366.40 is: 673,943.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,340.52 : 1,201,066.70 = 488,366.40 : x
  2. Step 2: Convert to fraction form
    870,340.52/1,201,066.70 = 488,366.40/x
  3. Step 3: Cross multiply
    870,340.52x = 1,201,066.70 × 488,366.40
  4. Step 4: Simplify right side
    870,340.52x = 586,560,620,438.88
  5. Step 5: Solve for x
    x = 586,560,620,438.88/870,340.52
  6. Step 6: Final answer
    x = 673,943.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.