Home / 870,252.08-1,305,645.38-415,423.70

Finding the Fourth Proportional to 870,252.08, 1,305,645.38 and 415,423.70

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Solution

The fourth proportional to 870,252.08, 1,305,645.38 and 415,423.70 is: 623,263.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,252.08 : 1,305,645.38 = 415,423.70 : x
  2. Step 2: Convert to fraction form
    870,252.08/1,305,645.38 = 415,423.70/x
  3. Step 3: Cross multiply
    870,252.08x = 1,305,645.38 × 415,423.70
  4. Step 4: Simplify right side
    870,252.08x = 542,396,034,647.51
  5. Step 5: Solve for x
    x = 542,396,034,647.51/870,252.08
  6. Step 6: Final answer
    x = 623,263.13

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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.