Home / 951,228.72-1,312,660.80-521,499.42

Finding the Fourth Proportional to 951,228.72, 1,312,660.80 and 521,499.42

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Solution

The fourth proportional to 951,228.72, 1,312,660.80 and 521,499.42 is: 719,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,228.72 : 1,312,660.80 = 521,499.42 : x
  2. Step 2: Convert to fraction form
    951,228.72/1,312,660.80 = 521,499.42/x
  3. Step 3: Cross multiply
    951,228.72x = 1,312,660.80 × 521,499.42
  4. Step 4: Simplify right side
    951,228.72x = 684,551,845,856.74
  5. Step 5: Solve for x
    x = 684,551,845,856.74/951,228.72
  6. Step 6: Final answer
    x = 719,650.10

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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.