Home / 912,878.40-1,366,693.20-807,902.40

Finding the Fourth Proportional to 912,878.40, 1,366,693.20 and 807,902.40

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Solution

The fourth proportional to 912,878.40, 1,366,693.20 and 807,902.40 is: 1,209,530.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,878.40 : 1,366,693.20 = 807,902.40 : x
  2. Step 2: Convert to fraction form
    912,878.40/1,366,693.20 = 807,902.40/x
  3. Step 3: Cross multiply
    912,878.40x = 1,366,693.20 × 807,902.40
  4. Step 4: Simplify right side
    912,878.40x = 1,104,154,716,343.68
  5. Step 5: Solve for x
    x = 1,104,154,716,343.68/912,878.40
  6. Step 6: Final answer
    x = 1,209,530.99

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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.