Home / 763,116.40-1,053,096.20-418,958.12

Finding the Fourth Proportional to 763,116.40, 1,053,096.20 and 418,958.12

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Solution

The fourth proportional to 763,116.40, 1,053,096.20 and 418,958.12 is: 578,159.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,116.40 : 1,053,096.20 = 418,958.12 : x
  2. Step 2: Convert to fraction form
    763,116.40/1,053,096.20 = 418,958.12/x
  3. Step 3: Cross multiply
    763,116.40x = 1,053,096.20 × 418,958.12
  4. Step 4: Simplify right side
    763,116.40x = 441,203,206,829.37
  5. Step 5: Solve for x
    x = 441,203,206,829.37/763,116.40
  6. Step 6: Final answer
    x = 578,159.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.