Home / 1,317,147.84-1,817,748-807,780.96

Finding the Fourth Proportional to 1,317,147.84, 1,817,748 and 807,780.96

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Solution

The fourth proportional to 1,317,147.84, 1,817,748 and 807,780.96 is: 1,114,789.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,147.84 : 1,817,748 = 807,780.96 : x
  2. Step 2: Convert to fraction form
    1,317,147.84/1,817,748 = 807,780.96/x
  3. Step 3: Cross multiply
    1,317,147.84x = 1,817,748 × 807,780.96
  4. Step 4: Simplify right side
    1,317,147.84x = 1,468,342,224,478.08
  5. Step 5: Solve for x
    x = 1,468,342,224,478.08/1,317,147.84
  6. Step 6: Final answer
    x = 1,114,789.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.