Home / 920,731.06-1,270,672.75-558,170.20

Finding the Fourth Proportional to 920,731.06, 1,270,672.75 and 558,170.20

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Solution

The fourth proportional to 920,731.06, 1,270,672.75 and 558,170.20 is: 770,313.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,731.06 : 1,270,672.75 = 558,170.20 : x
  2. Step 2: Convert to fraction form
    920,731.06/1,270,672.75 = 558,170.20/x
  3. Step 3: Cross multiply
    920,731.06x = 1,270,672.75 × 558,170.20
  4. Step 4: Simplify right side
    920,731.06x = 709,251,663,002.05
  5. Step 5: Solve for x
    x = 709,251,663,002.05/920,731.06
  6. Step 6: Final answer
    x = 770,313.61

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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.