Home / 870,146.44-1,306,500.92-486,646.66

Finding the Fourth Proportional to 870,146.44, 1,306,500.92 and 486,646.66

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Solution

The fourth proportional to 870,146.44, 1,306,500.92 and 486,646.66 is: 730,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,146.44 : 1,306,500.92 = 486,646.66 : x
  2. Step 2: Convert to fraction form
    870,146.44/1,306,500.92 = 486,646.66/x
  3. Step 3: Cross multiply
    870,146.44x = 1,306,500.92 × 486,646.66
  4. Step 4: Simplify right side
    870,146.44x = 635,804,303,547.23
  5. Step 5: Solve for x
    x = 635,804,303,547.23/870,146.44
  6. Step 6: Final answer
    x = 730,686.56

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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.