Home / 847,686.84-1,169,824.38-465,728.04

Finding the Fourth Proportional to 847,686.84, 1,169,824.38 and 465,728.04

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Solution

The fourth proportional to 847,686.84, 1,169,824.38 and 465,728.04 is: 642,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,686.84 : 1,169,824.38 = 465,728.04 : x
  2. Step 2: Convert to fraction form
    847,686.84/1,169,824.38 = 465,728.04/x
  3. Step 3: Cross multiply
    847,686.84x = 1,169,824.38 × 465,728.04
  4. Step 4: Simplify right side
    847,686.84x = 544,820,015,641.62
  5. Step 5: Solve for x
    x = 544,820,015,641.62/847,686.84
  6. Step 6: Final answer
    x = 642,713.78

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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.