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Finding the Fourth Proportional to 540,020.20, 808,280.70 and 477,034.60

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Solution

The fourth proportional to 540,020.20, 808,280.70 and 477,034.60 is: 714,006.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,020.20 : 808,280.70 = 477,034.60 : x
  2. Step 2: Convert to fraction form
    540,020.20/808,280.70 = 477,034.60/x
  3. Step 3: Cross multiply
    540,020.20x = 808,280.70 × 477,034.60
  4. Step 4: Simplify right side
    540,020.20x = 385,577,860,412.22
  5. Step 5: Solve for x
    x = 385,577,860,412.22/540,020.20
  6. Step 6: Final answer
    x = 714,006.37

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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.