Home / 1,042,208.72-1,438,247.40-565,280.72

Finding the Fourth Proportional to 1,042,208.72, 1,438,247.40 and 565,280.72

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Solution

The fourth proportional to 1,042,208.72, 1,438,247.40 and 565,280.72 is: 780,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,208.72 : 1,438,247.40 = 565,280.72 : x
  2. Step 2: Convert to fraction form
    1,042,208.72/1,438,247.40 = 565,280.72/x
  3. Step 3: Cross multiply
    1,042,208.72x = 1,438,247.40 × 565,280.72
  4. Step 4: Simplify right side
    1,042,208.72x = 813,013,525,810.13
  5. Step 5: Solve for x
    x = 813,013,525,810.13/1,042,208.72
  6. Step 6: Final answer
    x = 780,087.05

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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.