Home / 951,145.64-1,312,580.87-521,428.81

Finding the Fourth Proportional to 951,145.64, 1,312,580.87 and 521,428.81

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Solution

The fourth proportional to 951,145.64, 1,312,580.87 and 521,428.81 is: 719,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,145.64 : 1,312,580.87 = 521,428.81 : x
  2. Step 2: Convert to fraction form
    951,145.64/1,312,580.87 = 521,428.81/x
  3. Step 3: Cross multiply
    951,145.64x = 1,312,580.87 × 521,428.81
  4. Step 4: Simplify right side
    951,145.64x = 684,417,474,509.96
  5. Step 5: Solve for x
    x = 684,417,474,509.96/951,145.64
  6. Step 6: Final answer
    x = 719,571.69

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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.