Home / 535,108.76-738,464.16-302,517.20

Finding the Fourth Proportional to 535,108.76, 738,464.16 and 302,517.20

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Solution

The fourth proportional to 535,108.76, 738,464.16 and 302,517.20 is: 417,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,108.76 : 738,464.16 = 302,517.20 : x
  2. Step 2: Convert to fraction form
    535,108.76/738,464.16 = 302,517.20/x
  3. Step 3: Cross multiply
    535,108.76x = 738,464.16 × 302,517.20
  4. Step 4: Simplify right side
    535,108.76x = 223,398,109,983.55
  5. Step 5: Solve for x
    x = 223,398,109,983.55/535,108.76
  6. Step 6: Final answer
    x = 417,481.69

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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.