Home / 781,313.40-1,172,034.90-248,819.40

Finding the Fourth Proportional to 781,313.40, 1,172,034.90 and 248,819.40

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Solution

The fourth proportional to 781,313.40, 1,172,034.90 and 248,819.40 is: 373,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,313.40 : 1,172,034.90 = 248,819.40 : x
  2. Step 2: Convert to fraction form
    781,313.40/1,172,034.90 = 248,819.40/x
  3. Step 3: Cross multiply
    781,313.40x = 1,172,034.90 × 248,819.40
  4. Step 4: Simplify right side
    781,313.40x = 291,625,020,597.06
  5. Step 5: Solve for x
    x = 291,625,020,597.06/781,313.40
  6. Step 6: Final answer
    x = 373,249.74

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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.