Home / 1,280,367.48-1,766,978-707,395.36

Finding the Fourth Proportional to 1,280,367.48, 1,766,978 and 707,395.36

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Solution

The fourth proportional to 1,280,367.48, 1,766,978 and 707,395.36 is: 976,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,367.48 : 1,766,978 = 707,395.36 : x
  2. Step 2: Convert to fraction form
    1,280,367.48/1,766,978 = 707,395.36/x
  3. Step 3: Cross multiply
    1,280,367.48x = 1,766,978 × 707,395.36
  4. Step 4: Simplify right side
    1,280,367.48x = 1,249,952,038,422.08
  5. Step 5: Solve for x
    x = 1,249,952,038,422.08/1,280,367.48
  6. Step 6: Final answer
    x = 976,244.76

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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.