Home / 638,502.23-880,217.20-502,299.44

Finding the Fourth Proportional to 638,502.23, 880,217.20 and 502,299.44

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Solution

The fourth proportional to 638,502.23, 880,217.20 and 502,299.44 is: 692,452.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,502.23 : 880,217.20 = 502,299.44 : x
  2. Step 2: Convert to fraction form
    638,502.23/880,217.20 = 502,299.44/x
  3. Step 3: Cross multiply
    638,502.23x = 880,217.20 × 502,299.44
  4. Step 4: Simplify right side
    638,502.23x = 442,132,606,638.37
  5. Step 5: Solve for x
    x = 442,132,606,638.37/638,502.23
  6. Step 6: Final answer
    x = 692,452.72

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1.5x scale

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.