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Finding the Fourth Proportional to 490,545.08, 676,967.56 and 296,988.29

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Solution

The fourth proportional to 490,545.08, 676,967.56 and 296,988.29 is: 409,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,545.08 : 676,967.56 = 296,988.29 : x
  2. Step 2: Convert to fraction form
    490,545.08/676,967.56 = 296,988.29/x
  3. Step 3: Cross multiply
    490,545.08x = 676,967.56 × 296,988.29
  4. Step 4: Simplify right side
    490,545.08x = 201,051,436,441.19
  5. Step 5: Solve for x
    x = 201,051,436,441.19/490,545.08
  6. Step 6: Final answer
    x = 409,853.13

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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.