Home / 976,885.40-1,465,328.10-345,717.20

Finding the Fourth Proportional to 976,885.40, 1,465,328.10 and 345,717.20

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Solution

The fourth proportional to 976,885.40, 1,465,328.10 and 345,717.20 is: 518,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,885.40 : 1,465,328.10 = 345,717.20 : x
  2. Step 2: Convert to fraction form
    976,885.40/1,465,328.10 = 345,717.20/x
  3. Step 3: Cross multiply
    976,885.40x = 1,465,328.10 × 345,717.20
  4. Step 4: Simplify right side
    976,885.40x = 506,589,127,813.32
  5. Step 5: Solve for x
    x = 506,589,127,813.32/976,885.40
  6. Step 6: Final answer
    x = 518,575.80

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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.