Home / 811,748.62-1,217,280.39-243,210.57

Finding the Fourth Proportional to 811,748.62, 1,217,280.39 and 243,210.57

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Solution

The fourth proportional to 811,748.62, 1,217,280.39 and 243,210.57 is: 364,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,748.62 : 1,217,280.39 = 243,210.57 : x
  2. Step 2: Convert to fraction form
    811,748.62/1,217,280.39 = 243,210.57/x
  3. Step 3: Cross multiply
    811,748.62x = 1,217,280.39 × 243,210.57
  4. Step 4: Simplify right side
    811,748.62x = 296,055,452,024.88
  5. Step 5: Solve for x
    x = 296,055,452,024.88/811,748.62
  6. Step 6: Final answer
    x = 364,713.22

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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.