Home / 758,613.96-1,137,528.90-278,719.20

Finding the Fourth Proportional to 758,613.96, 1,137,528.90 and 278,719.20

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Solution

The fourth proportional to 758,613.96, 1,137,528.90 and 278,719.20 is: 417,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,613.96 : 1,137,528.90 = 278,719.20 : x
  2. Step 2: Convert to fraction form
    758,613.96/1,137,528.90 = 278,719.20/x
  3. Step 3: Cross multiply
    758,613.96x = 1,137,528.90 × 278,719.20
  4. Step 4: Simplify right side
    758,613.96x = 317,051,144,984.88
  5. Step 5: Solve for x
    x = 317,051,144,984.88/758,613.96
  6. Step 6: Final answer
    x = 417,934.76

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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.