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Finding the Fourth Proportional to 680,687.10, 1,021,030.65 and 468,110.70

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Solution

The fourth proportional to 680,687.10, 1,021,030.65 and 468,110.70 is: 702,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,687.10 : 1,021,030.65 = 468,110.70 : x
  2. Step 2: Convert to fraction form
    680,687.10/1,021,030.65 = 468,110.70/x
  3. Step 3: Cross multiply
    680,687.10x = 1,021,030.65 × 468,110.70
  4. Step 4: Simplify right side
    680,687.10x = 477,955,372,292.96
  5. Step 5: Solve for x
    x = 477,955,372,292.96/680,687.10
  6. Step 6: Final answer
    x = 702,166.05

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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.