Home / 976,998.40-1,465,670.40-346,278.40

Finding the Fourth Proportional to 976,998.40, 1,465,670.40 and 346,278.40

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Solution

The fourth proportional to 976,998.40, 1,465,670.40 and 346,278.40 is: 519,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,998.40 : 1,465,670.40 = 346,278.40 : x
  2. Step 2: Convert to fraction form
    976,998.40/1,465,670.40 = 346,278.40/x
  3. Step 3: Cross multiply
    976,998.40x = 1,465,670.40 × 346,278.40
  4. Step 4: Simplify right side
    976,998.40x = 507,530,001,039.36
  5. Step 5: Solve for x
    x = 507,530,001,039.36/976,998.40
  6. Step 6: Final answer
    x = 519,478.85

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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.