Home / 495,941.20-743,911.80-121,964.20

Finding the Fourth Proportional to 495,941.20, 743,911.80 and 121,964.20

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Solution

The fourth proportional to 495,941.20, 743,911.80 and 121,964.20 is: 182,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,941.20 : 743,911.80 = 121,964.20 : x
  2. Step 2: Convert to fraction form
    495,941.20/743,911.80 = 121,964.20/x
  3. Step 3: Cross multiply
    495,941.20x = 743,911.80 × 121,964.20
  4. Step 4: Simplify right side
    495,941.20x = 90,730,607,557.56
  5. Step 5: Solve for x
    x = 90,730,607,557.56/495,941.20
  6. Step 6: Final answer
    x = 182,946.30

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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.