Home / 912,714.38-1,368,780.41-313,531.05

Finding the Fourth Proportional to 912,714.38, 1,368,780.41 and 313,531.05

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Solution

The fourth proportional to 912,714.38, 1,368,780.41 and 313,531.05 is: 470,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,714.38 : 1,368,780.41 = 313,531.05 : x
  2. Step 2: Convert to fraction form
    912,714.38/1,368,780.41 = 313,531.05/x
  3. Step 3: Cross multiply
    912,714.38x = 1,368,780.41 × 313,531.05
  4. Step 4: Simplify right side
    912,714.38x = 429,155,157,599.08
  5. Step 5: Solve for x
    x = 429,155,157,599.08/912,714.38
  6. Step 6: Final answer
    x = 470,196.56

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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.