Home / 976,885.20-1,347,408.72-609,547.28

Finding the Fourth Proportional to 976,885.20, 1,347,408.72 and 609,547.28

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Solution

The fourth proportional to 976,885.20, 1,347,408.72 and 609,547.28 is: 840,742.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,885.20 : 1,347,408.72 = 609,547.28 : x
  2. Step 2: Convert to fraction form
    976,885.20/1,347,408.72 = 609,547.28/x
  3. Step 3: Cross multiply
    976,885.20x = 1,347,408.72 × 609,547.28
  4. Step 4: Simplify right side
    976,885.20x = 821,309,320,324.28
  5. Step 5: Solve for x
    x = 821,309,320,324.28/976,885.20
  6. Step 6: Final answer
    x = 840,742.92

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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.