Home / 500,241.71-690,161.06-282,423.20

Finding the Fourth Proportional to 500,241.71, 690,161.06 and 282,423.20

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Solution

The fourth proportional to 500,241.71, 690,161.06 and 282,423.20 is: 389,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,241.71 : 690,161.06 = 282,423.20 : x
  2. Step 2: Convert to fraction form
    500,241.71/690,161.06 = 282,423.20/x
  3. Step 3: Cross multiply
    500,241.71x = 690,161.06 × 282,423.20
  4. Step 4: Simplify right side
    500,241.71x = 194,917,492,335.85
  5. Step 5: Solve for x
    x = 194,917,492,335.85/500,241.71
  6. Step 6: Final answer
    x = 389,646.62

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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.