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Finding the Fourth Proportional to 612,613.20, 916,846.20 and 537,963.60

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Solution

The fourth proportional to 612,613.20, 916,846.20 and 537,963.60 is: 805,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,613.20 : 916,846.20 = 537,963.60 : x
  2. Step 2: Convert to fraction form
    612,613.20/916,846.20 = 537,963.60/x
  3. Step 3: Cross multiply
    612,613.20x = 916,846.20 × 537,963.60
  4. Step 4: Simplify right side
    612,613.20x = 493,229,882,398.32
  5. Step 5: Solve for x
    x = 493,229,882,398.32/612,613.20
  6. Step 6: Final answer
    x = 805,124.48

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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.