Home / 813,186.30-1,218,904.65-307,551.90

Finding the Fourth Proportional to 813,186.30, 1,218,904.65 and 307,551.90

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Solution

The fourth proportional to 813,186.30, 1,218,904.65 and 307,551.90 is: 460,997.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,186.30 : 1,218,904.65 = 307,551.90 : x
  2. Step 2: Convert to fraction form
    813,186.30/1,218,904.65 = 307,551.90/x
  3. Step 3: Cross multiply
    813,186.30x = 1,218,904.65 × 307,551.90
  4. Step 4: Simplify right side
    813,186.30x = 374,876,441,026.34
  5. Step 5: Solve for x
    x = 374,876,441,026.34/813,186.30
  6. Step 6: Final answer
    x = 460,997.00

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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.