Home / 770,228.80-1,154,114.40-644,891.20

Finding the Fourth Proportional to 770,228.80, 1,154,114.40 and 644,891.20

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Solution

The fourth proportional to 770,228.80, 1,154,114.40 and 644,891.20 is: 966,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,228.80 : 1,154,114.40 = 644,891.20 : x
  2. Step 2: Convert to fraction form
    770,228.80/1,154,114.40 = 644,891.20/x
  3. Step 3: Cross multiply
    770,228.80x = 1,154,114.40 × 644,891.20
  4. Step 4: Simplify right side
    770,228.80x = 744,278,220,353.28
  5. Step 5: Solve for x
    x = 744,278,220,353.28/770,228.80
  6. Step 6: Final answer
    x = 966,307.96

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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.