Home / 999,725.70-1,499,588.55-438,760.20

Finding the Fourth Proportional to 999,725.70, 1,499,588.55 and 438,760.20

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Solution

The fourth proportional to 999,725.70, 1,499,588.55 and 438,760.20 is: 658,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,725.70 : 1,499,588.55 = 438,760.20 : x
  2. Step 2: Convert to fraction form
    999,725.70/1,499,588.55 = 438,760.20/x
  3. Step 3: Cross multiply
    999,725.70x = 1,499,588.55 × 438,760.20
  4. Step 4: Simplify right side
    999,725.70x = 657,959,772,115.71
  5. Step 5: Solve for x
    x = 657,959,772,115.71/999,725.70
  6. Step 6: Final answer
    x = 658,140.30

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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.