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Finding the Fourth Proportional to 549,628.40, 824,442.60 and 495,390.80

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Solution

The fourth proportional to 549,628.40, 824,442.60 and 495,390.80 is: 743,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,628.40 : 824,442.60 = 495,390.80 : x
  2. Step 2: Convert to fraction form
    549,628.40/824,442.60 = 495,390.80/x
  3. Step 3: Cross multiply
    549,628.40x = 824,442.60 × 495,390.80
  4. Step 4: Simplify right side
    549,628.40x = 408,421,279,168.08
  5. Step 5: Solve for x
    x = 408,421,279,168.08/549,628.40
  6. Step 6: Final answer
    x = 743,086.20

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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.