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Finding the Fourth Proportional to 488,911.80, 734,058.90 and 302,287.80

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Solution

The fourth proportional to 488,911.80, 734,058.90 and 302,287.80 is: 453,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,911.80 : 734,058.90 = 302,287.80 : x
  2. Step 2: Convert to fraction form
    488,911.80/734,058.90 = 302,287.80/x
  3. Step 3: Cross multiply
    488,911.80x = 734,058.90 × 302,287.80
  4. Step 4: Simplify right side
    488,911.80x = 221,897,049,951.42
  5. Step 5: Solve for x
    x = 221,897,049,951.42/488,911.80
  6. Step 6: Final answer
    x = 453,859.06

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1.5x scale

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.