Home / 825,857.40-1,237,230.90-425,134.20

Finding the Fourth Proportional to 825,857.40, 1,237,230.90 and 425,134.20

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Solution

The fourth proportional to 825,857.40, 1,237,230.90 and 425,134.20 is: 636,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,857.40 : 1,237,230.90 = 425,134.20 : x
  2. Step 2: Convert to fraction form
    825,857.40/1,237,230.90 = 425,134.20/x
  3. Step 3: Cross multiply
    825,857.40x = 1,237,230.90 × 425,134.20
  4. Step 4: Simplify right side
    825,857.40x = 525,989,168,886.78
  5. Step 5: Solve for x
    x = 525,989,168,886.78/825,857.40
  6. Step 6: Final answer
    x = 636,900.72

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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.