Home / 870,871.80-1,306,307.70-496,932.60

Finding the Fourth Proportional to 870,871.80, 1,306,307.70 and 496,932.60

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Solution

The fourth proportional to 870,871.80, 1,306,307.70 and 496,932.60 is: 745,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,871.80 : 1,306,307.70 = 496,932.60 : x
  2. Step 2: Convert to fraction form
    870,871.80/1,306,307.70 = 496,932.60/x
  3. Step 3: Cross multiply
    870,871.80x = 1,306,307.70 × 496,932.60
  4. Step 4: Simplify right side
    870,871.80x = 649,146,881,761.02
  5. Step 5: Solve for x
    x = 649,146,881,761.02/870,871.80
  6. Step 6: Final answer
    x = 745,398.90

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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.