Home / 847,643.70-1,169,769.96-465,680.10

Finding the Fourth Proportional to 847,643.70, 1,169,769.96 and 465,680.10

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Solution

The fourth proportional to 847,643.70, 1,169,769.96 and 465,680.10 is: 642,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,643.70 : 1,169,769.96 = 465,680.10 : x
  2. Step 2: Convert to fraction form
    847,643.70/1,169,769.96 = 465,680.10/x
  3. Step 3: Cross multiply
    847,643.70x = 1,169,769.96 × 465,680.10
  4. Step 4: Simplify right side
    847,643.70x = 544,738,591,949.80
  5. Step 5: Solve for x
    x = 544,738,591,949.80/847,643.70
  6. Step 6: Final answer
    x = 642,650.43

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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.