Home / 558,789.78-771,278.14-344,109.72

Finding the Fourth Proportional to 558,789.78, 771,278.14 and 344,109.72

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Solution

The fourth proportional to 558,789.78, 771,278.14 and 344,109.72 is: 474,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,789.78 : 771,278.14 = 344,109.72 : x
  2. Step 2: Convert to fraction form
    558,789.78/771,278.14 = 344,109.72/x
  3. Step 3: Cross multiply
    558,789.78x = 771,278.14 × 344,109.72
  4. Step 4: Simplify right side
    558,789.78x = 265,404,304,797.52
  5. Step 5: Solve for x
    x = 265,404,304,797.52/558,789.78
  6. Step 6: Final answer
    x = 474,962.70

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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.