Home / 976,820.40-1,465,230.60-345,652.20

Finding the Fourth Proportional to 976,820.40, 1,465,230.60 and 345,652.20

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Solution

The fourth proportional to 976,820.40, 1,465,230.60 and 345,652.20 is: 518,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,820.40 : 1,465,230.60 = 345,652.20 : x
  2. Step 2: Convert to fraction form
    976,820.40/1,465,230.60 = 345,652.20/x
  3. Step 3: Cross multiply
    976,820.40x = 1,465,230.60 × 345,652.20
  4. Step 4: Simplify right side
    976,820.40x = 506,460,180,397.32
  5. Step 5: Solve for x
    x = 506,460,180,397.32/976,820.40
  6. Step 6: Final answer
    x = 518,478.30

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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.