Home / 857,279.03-1,286,689.46-458,260.88

Finding the Fourth Proportional to 857,279.03, 1,286,689.46 and 458,260.88

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Solution

The fourth proportional to 857,279.03, 1,286,689.46 and 458,260.88 is: 687,803.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,279.03 : 1,286,689.46 = 458,260.88 : x
  2. Step 2: Convert to fraction form
    857,279.03/1,286,689.46 = 458,260.88/x
  3. Step 3: Cross multiply
    857,279.03x = 1,286,689.46 × 458,260.88
  4. Step 4: Simplify right side
    857,279.03x = 589,639,435,501.57
  5. Step 5: Solve for x
    x = 589,639,435,501.57/857,279.03
  6. Step 6: Final answer
    x = 687,803.41

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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.