Home / 976,900.80-1,465,351.20-549,998.40

Finding the Fourth Proportional to 976,900.80, 1,465,351.20 and 549,998.40

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Solution

The fourth proportional to 976,900.80, 1,465,351.20 and 549,998.40 is: 824,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,900.80 : 1,465,351.20 = 549,998.40 : x
  2. Step 2: Convert to fraction form
    976,900.80/1,465,351.20 = 549,998.40/x
  3. Step 3: Cross multiply
    976,900.80x = 1,465,351.20 × 549,998.40
  4. Step 4: Simplify right side
    976,900.80x = 805,940,815,438.08
  5. Step 5: Solve for x
    x = 805,940,815,438.08/976,900.80
  6. Step 6: Final answer
    x = 824,997.60

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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.