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Finding the Fourth Proportional to 546,445.80, 819,312.30 and 490,458.60

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Solution

The fourth proportional to 546,445.80, 819,312.30 and 490,458.60 is: 735,368.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,445.80 : 819,312.30 = 490,458.60 : x
  2. Step 2: Convert to fraction form
    546,445.80/819,312.30 = 490,458.60/x
  3. Step 3: Cross multiply
    546,445.80x = 819,312.30 × 490,458.60
  4. Step 4: Simplify right side
    546,445.80x = 401,838,763,620.78
  5. Step 5: Solve for x
    x = 401,838,763,620.78/546,445.80
  6. Step 6: Final answer
    x = 735,368.02

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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.