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Finding the Fourth Proportional to 497,279.60, 686,239.44 and 270,925.28

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Solution

The fourth proportional to 497,279.60, 686,239.44 and 270,925.28 is: 373,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,279.60 : 686,239.44 = 270,925.28 : x
  2. Step 2: Convert to fraction form
    497,279.60/686,239.44 = 270,925.28/x
  3. Step 3: Cross multiply
    497,279.60x = 686,239.44 × 270,925.28
  4. Step 4: Simplify right side
    497,279.60x = 185,919,612,429.04
  5. Step 5: Solve for x
    x = 185,919,612,429.04/497,279.60
  6. Step 6: Final answer
    x = 373,873.40

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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.