Home / 1,288,625.88-1,778,307.92-715,666.06

Finding the Fourth Proportional to 1,288,625.88, 1,778,307.92 and 715,666.06

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Solution

The fourth proportional to 1,288,625.88, 1,778,307.92 and 715,666.06 is: 987,621.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,625.88 : 1,778,307.92 = 715,666.06 : x
  2. Step 2: Convert to fraction form
    1,288,625.88/1,778,307.92 = 715,666.06/x
  3. Step 3: Cross multiply
    1,288,625.88x = 1,778,307.92 × 715,666.06
  4. Step 4: Simplify right side
    1,288,625.88x = 1,272,674,622,573.20
  5. Step 5: Solve for x
    x = 1,272,674,622,573.20/1,288,625.88
  6. Step 6: Final answer
    x = 987,621.50

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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.