Home / 870,818.20-1,304,499.30-766,907.80

Finding the Fourth Proportional to 870,818.20, 1,304,499.30 and 766,907.80

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Solution

The fourth proportional to 870,818.20, 1,304,499.30 and 766,907.80 is: 1,148,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,818.20 : 1,304,499.30 = 766,907.80 : x
  2. Step 2: Convert to fraction form
    870,818.20/1,304,499.30 = 766,907.80/x
  3. Step 3: Cross multiply
    870,818.20x = 1,304,499.30 × 766,907.80
  4. Step 4: Simplify right side
    870,818.20x = 1,000,430,688,264.54
  5. Step 5: Solve for x
    x = 1,000,430,688,264.54/870,818.20
  6. Step 6: Final answer
    x = 1,148,839.89

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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.