Home / 754,915.60-1,130,405.10-487,226.80

Finding the Fourth Proportional to 754,915.60, 1,130,405.10 and 487,226.80

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Solution

The fourth proportional to 754,915.60, 1,130,405.10 and 487,226.80 is: 729,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,915.60 : 1,130,405.10 = 487,226.80 : x
  2. Step 2: Convert to fraction form
    754,915.60/1,130,405.10 = 487,226.80/x
  3. Step 3: Cross multiply
    754,915.60x = 1,130,405.10 × 487,226.80
  4. Step 4: Simplify right side
    754,915.60x = 550,763,659,576.68
  5. Step 5: Solve for x
    x = 550,763,659,576.68/754,915.60
  6. Step 6: Final answer
    x = 729,569.85

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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.