Home / 864,002.10-1,296,003.15-612,059.70

Finding the Fourth Proportional to 864,002.10, 1,296,003.15 and 612,059.70

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Solution

The fourth proportional to 864,002.10, 1,296,003.15 and 612,059.70 is: 918,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,002.10 : 1,296,003.15 = 612,059.70 : x
  2. Step 2: Convert to fraction form
    864,002.10/1,296,003.15 = 612,059.70/x
  3. Step 3: Cross multiply
    864,002.10x = 1,296,003.15 × 612,059.70
  4. Step 4: Simplify right side
    864,002.10x = 793,231,299,188.06
  5. Step 5: Solve for x
    x = 793,231,299,188.06/864,002.10
  6. Step 6: Final answer
    x = 918,089.55

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Double scale
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Similar ratio
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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.