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Finding the Fourth Proportional to 653,687.31, 980,073.59 and 333,938.19

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Solution

The fourth proportional to 653,687.31, 980,073.59 and 333,938.19 is: 500,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,687.31 : 980,073.59 = 333,938.19 : x
  2. Step 2: Convert to fraction form
    653,687.31/980,073.59 = 333,938.19/x
  3. Step 3: Cross multiply
    653,687.31x = 980,073.59 × 333,938.19
  4. Step 4: Simplify right side
    653,687.31x = 327,283,999,041.71
  5. Step 5: Solve for x
    x = 327,283,999,041.71/653,687.31
  6. Step 6: Final answer
    x = 500,673.63

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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.