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Finding the Fourth Proportional to 680,040.68, 1,020,061.70 and 253,570

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Solution

The fourth proportional to 680,040.68, 1,020,061.70 and 253,570 is: 380,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,040.68 : 1,020,061.70 = 253,570 : x
  2. Step 2: Convert to fraction form
    680,040.68/1,020,061.70 = 253,570/x
  3. Step 3: Cross multiply
    680,040.68x = 1,020,061.70 × 253,570
  4. Step 4: Simplify right side
    680,040.68x = 258,657,045,269
  5. Step 5: Solve for x
    x = 258,657,045,269/680,040.68
  6. Step 6: Final answer
    x = 380,355.25

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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.