Home / 876,073.92-1,209,240.56-513,576.24

Finding the Fourth Proportional to 876,073.92, 1,209,240.56 and 513,576.24

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Solution

The fourth proportional to 876,073.92, 1,209,240.56 and 513,576.24 is: 708,886.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,073.92 : 1,209,240.56 = 513,576.24 : x
  2. Step 2: Convert to fraction form
    876,073.92/1,209,240.56 = 513,576.24/x
  3. Step 3: Cross multiply
    876,073.92x = 1,209,240.56 × 513,576.24
  4. Step 4: Simplify right side
    876,073.92x = 621,037,217,492.41
  5. Step 5: Solve for x
    x = 621,037,217,492.41/876,073.92
  6. Step 6: Final answer
    x = 708,886.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.