Home / 996,946.20-1,495,613.70-428,326.20

Finding the Fourth Proportional to 996,946.20, 1,495,613.70 and 428,326.20

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Solution

The fourth proportional to 996,946.20, 1,495,613.70 and 428,326.20 is: 642,572.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,946.20 : 1,495,613.70 = 428,326.20 : x
  2. Step 2: Convert to fraction form
    996,946.20/1,495,613.70 = 428,326.20/x
  3. Step 3: Cross multiply
    996,946.20x = 1,495,613.70 × 428,326.20
  4. Step 4: Simplify right side
    996,946.20x = 640,610,532,788.94
  5. Step 5: Solve for x
    x = 640,610,532,788.94/996,946.20
  6. Step 6: Final answer
    x = 642,572.82

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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.