Home / 515,027.60-772,541.40-506,279.60

Finding the Fourth Proportional to 515,027.60, 772,541.40 and 506,279.60

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Solution

The fourth proportional to 515,027.60, 772,541.40 and 506,279.60 is: 759,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,027.60 : 772,541.40 = 506,279.60 : x
  2. Step 2: Convert to fraction form
    515,027.60/772,541.40 = 506,279.60/x
  3. Step 3: Cross multiply
    515,027.60x = 772,541.40 × 506,279.60
  4. Step 4: Simplify right side
    515,027.60x = 391,121,950,975.44
  5. Step 5: Solve for x
    x = 391,121,950,975.44/515,027.60
  6. Step 6: Final answer
    x = 759,419.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.