Home / 717,872.20-1,076,613.90-212,432.20

Finding the Fourth Proportional to 717,872.20, 1,076,613.90 and 212,432.20

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Solution

The fourth proportional to 717,872.20, 1,076,613.90 and 212,432.20 is: 318,590.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,872.20 : 1,076,613.90 = 212,432.20 : x
  2. Step 2: Convert to fraction form
    717,872.20/1,076,613.90 = 212,432.20/x
  3. Step 3: Cross multiply
    717,872.20x = 1,076,613.90 × 212,432.20
  4. Step 4: Simplify right side
    717,872.20x = 228,707,459,327.58
  5. Step 5: Solve for x
    x = 228,707,459,327.58/717,872.20
  6. Step 6: Final answer
    x = 318,590.77

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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.