Home / 558,788.78-771,276.76-344,108.72

Finding the Fourth Proportional to 558,788.78, 771,276.76 and 344,108.72

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Solution

The fourth proportional to 558,788.78, 771,276.76 and 344,108.72 is: 474,961.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,788.78 : 771,276.76 = 344,108.72 : x
  2. Step 2: Convert to fraction form
    558,788.78/771,276.76 = 344,108.72/x
  3. Step 3: Cross multiply
    558,788.78x = 771,276.76 × 344,108.72
  4. Step 4: Simplify right side
    558,788.78x = 265,403,058,649.35
  5. Step 5: Solve for x
    x = 265,403,058,649.35/558,788.78
  6. Step 6: Final answer
    x = 474,961.32

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Half scale
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Double scale
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Similar ratio
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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.