Home / 847,060.12-1,270,320.73-278,310.13

Finding the Fourth Proportional to 847,060.12, 1,270,320.73 and 278,310.13

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Solution

The fourth proportional to 847,060.12, 1,270,320.73 and 278,310.13 is: 417,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,060.12 : 1,270,320.73 = 278,310.13 : x
  2. Step 2: Convert to fraction form
    847,060.12/1,270,320.73 = 278,310.13/x
  3. Step 3: Cross multiply
    847,060.12x = 1,270,320.73 × 278,310.13
  4. Step 4: Simplify right side
    847,060.12x = 353,543,127,508.00
  5. Step 5: Solve for x
    x = 353,543,127,508.00/847,060.12
  6. Step 6: Final answer
    x = 417,376.66

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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.