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Finding the Fourth Proportional to 545,829.40, 818,744.10 and 347,031.10

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Solution

The fourth proportional to 545,829.40, 818,744.10 and 347,031.10 is: 520,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,829.40 : 818,744.10 = 347,031.10 : x
  2. Step 2: Convert to fraction form
    545,829.40/818,744.10 = 347,031.10/x
  3. Step 3: Cross multiply
    545,829.40x = 818,744.10 × 347,031.10
  4. Step 4: Simplify right side
    545,829.40x = 284,129,665,641.51
  5. Step 5: Solve for x
    x = 284,129,665,641.51/545,829.40
  6. Step 6: Final answer
    x = 520,546.65

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Similar ratio
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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.