Home / 920,844.52-1,270,473-518,358.76

Finding the Fourth Proportional to 920,844.52, 1,270,473 and 518,358.76

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Solution

The fourth proportional to 920,844.52, 1,270,473 and 518,358.76 is: 715,170.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,844.52 : 1,270,473 = 518,358.76 : x
  2. Step 2: Convert to fraction form
    920,844.52/1,270,473 = 518,358.76/x
  3. Step 3: Cross multiply
    920,844.52x = 1,270,473 × 518,358.76
  4. Step 4: Simplify right side
    920,844.52x = 658,560,808,893.48
  5. Step 5: Solve for x
    x = 658,560,808,893.48/920,844.52
  6. Step 6: Final answer
    x = 715,170.47

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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.