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Finding the Fourth Proportional to 545,820.80, 818,731.20 and 488,740.10

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Solution

The fourth proportional to 545,820.80, 818,731.20 and 488,740.10 is: 733,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,820.80 : 818,731.20 = 488,740.10 : x
  2. Step 2: Convert to fraction form
    545,820.80/818,731.20 = 488,740.10/x
  3. Step 3: Cross multiply
    545,820.80x = 818,731.20 × 488,740.10
  4. Step 4: Simplify right side
    545,820.80x = 400,146,768,561.12
  5. Step 5: Solve for x
    x = 400,146,768,561.12/545,820.80
  6. Step 6: Final answer
    x = 733,110.15

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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.