Home / 749,474.89-1,124,640.85-317,158.30

Finding the Fourth Proportional to 749,474.89, 1,124,640.85 and 317,158.30

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Solution

The fourth proportional to 749,474.89, 1,124,640.85 and 317,158.30 is: 475,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,474.89 : 1,124,640.85 = 317,158.30 : x
  2. Step 2: Convert to fraction form
    749,474.89/1,124,640.85 = 317,158.30/x
  3. Step 3: Cross multiply
    749,474.89x = 1,124,640.85 × 317,158.30
  4. Step 4: Simplify right side
    749,474.89x = 356,689,176,492.06
  5. Step 5: Solve for x
    x = 356,689,176,492.06/749,474.89
  6. Step 6: Final answer
    x = 475,918.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.