Home / 744,941.80-1,117,412.70-670,292.20

Finding the Fourth Proportional to 744,941.80, 1,117,412.70 and 670,292.20

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Solution

The fourth proportional to 744,941.80, 1,117,412.70 and 670,292.20 is: 1,005,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,941.80 : 1,117,412.70 = 670,292.20 : x
  2. Step 2: Convert to fraction form
    744,941.80/1,117,412.70 = 670,292.20/x
  3. Step 3: Cross multiply
    744,941.80x = 1,117,412.70 × 670,292.20
  4. Step 4: Simplify right side
    744,941.80x = 748,993,016,990.94
  5. Step 5: Solve for x
    x = 748,993,016,990.94/744,941.80
  6. Step 6: Final answer
    x = 1,005,438.30

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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.