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Finding the Fourth Proportional to 534,189.40, 800,117.70 and 323,459.80

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Solution

The fourth proportional to 534,189.40, 800,117.70 and 323,459.80 is: 484,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,189.40 : 800,117.70 = 323,459.80 : x
  2. Step 2: Convert to fraction form
    534,189.40/800,117.70 = 323,459.80/x
  3. Step 3: Cross multiply
    534,189.40x = 800,117.70 × 323,459.80
  4. Step 4: Simplify right side
    534,189.40x = 258,805,911,218.46
  5. Step 5: Solve for x
    x = 258,805,911,218.46/534,189.40
  6. Step 6: Final answer
    x = 484,483.43

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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.