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Finding the Fourth Proportional to 557,079.60, 768,765.72 and 302,424.24

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Solution

The fourth proportional to 557,079.60, 768,765.72 and 302,424.24 is: 417,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,079.60 : 768,765.72 = 302,424.24 : x
  2. Step 2: Convert to fraction form
    557,079.60/768,765.72 = 302,424.24/x
  3. Step 3: Cross multiply
    557,079.60x = 768,765.72 × 302,424.24
  4. Step 4: Simplify right side
    557,079.60x = 232,493,388,609.05
  5. Step 5: Solve for x
    x = 232,493,388,609.05/557,079.60
  6. Step 6: Final answer
    x = 417,343.21

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1.5x scale

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.