Home / 831,458.79-1,247,655.96-452,406.87

Finding the Fourth Proportional to 831,458.79, 1,247,655.96 and 452,406.87

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Solution

The fourth proportional to 831,458.79, 1,247,655.96 and 452,406.87 is: 678,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,458.79 : 1,247,655.96 = 452,406.87 : x
  2. Step 2: Convert to fraction form
    831,458.79/1,247,655.96 = 452,406.87/x
  3. Step 3: Cross multiply
    831,458.79x = 1,247,655.96 × 452,406.87
  4. Step 4: Simplify right side
    831,458.79x = 564,448,127,700.45
  5. Step 5: Solve for x
    x = 564,448,127,700.45/831,458.79
  6. Step 6: Final answer
    x = 678,864.83

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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.