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Finding the Fourth Proportional to 558,298.61, 770,204.99 and 343,311.65

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Solution

The fourth proportional to 558,298.61, 770,204.99 and 343,311.65 is: 473,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,298.61 : 770,204.99 = 343,311.65 : x
  2. Step 2: Convert to fraction form
    558,298.61/770,204.99 = 343,311.65/x
  3. Step 3: Cross multiply
    558,298.61x = 770,204.99 × 343,311.65
  4. Step 4: Simplify right side
    558,298.61x = 264,420,340,387.55
  5. Step 5: Solve for x
    x = 264,420,340,387.55/558,298.61
  6. Step 6: Final answer
    x = 473,618.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.