Home / 913,479.80-1,370,219.70-869,934.20

Finding the Fourth Proportional to 913,479.80, 1,370,219.70 and 869,934.20

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Solution

The fourth proportional to 913,479.80, 1,370,219.70 and 869,934.20 is: 1,304,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,479.80 : 1,370,219.70 = 869,934.20 : x
  2. Step 2: Convert to fraction form
    913,479.80/1,370,219.70 = 869,934.20/x
  3. Step 3: Cross multiply
    913,479.80x = 1,370,219.70 × 869,934.20
  4. Step 4: Simplify right side
    913,479.80x = 1,192,000,978,543.74
  5. Step 5: Solve for x
    x = 1,192,000,978,543.74/913,479.80
  6. Step 6: Final answer
    x = 1,304,901.30

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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.