Home / 870,402.30-1,201,178.93-488,452.47

Finding the Fourth Proportional to 870,402.30, 1,201,178.93 and 488,452.47

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Solution

The fourth proportional to 870,402.30, 1,201,178.93 and 488,452.47 is: 674,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,402.30 : 1,201,178.93 = 488,452.47 : x
  2. Step 2: Convert to fraction form
    870,402.30/1,201,178.93 = 488,452.47/x
  3. Step 3: Cross multiply
    870,402.30x = 1,201,178.93 × 488,452.47
  4. Step 4: Simplify right side
    870,402.30x = 586,718,815,270.46
  5. Step 5: Solve for x
    x = 586,718,815,270.46/870,402.30
  6. Step 6: Final answer
    x = 674,077.74

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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.