Home / 831,723.71-1,248,285.40-779,235.71

Finding the Fourth Proportional to 831,723.71, 1,248,285.40 and 779,235.71

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Solution

The fourth proportional to 831,723.71, 1,248,285.40 and 779,235.71 is: 1,169,509.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,723.71 : 1,248,285.40 = 779,235.71 : x
  2. Step 2: Convert to fraction form
    831,723.71/1,248,285.40 = 779,235.71/x
  3. Step 3: Cross multiply
    831,723.71x = 1,248,285.40 × 779,235.71
  4. Step 4: Simplify right side
    831,723.71x = 972,708,551,762.12
  5. Step 5: Solve for x
    x = 972,708,551,762.12/831,723.71
  6. Step 6: Final answer
    x = 1,169,509.23

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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.