Home / 1,280,055.80-1,766,442.78-707,083.64

Finding the Fourth Proportional to 1,280,055.80, 1,766,442.78 and 707,083.64

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Solution

The fourth proportional to 1,280,055.80, 1,766,442.78 and 707,083.64 is: 975,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,055.80 : 1,766,442.78 = 707,083.64 : x
  2. Step 2: Convert to fraction form
    1,280,055.80/1,766,442.78 = 707,083.64/x
  3. Step 3: Cross multiply
    1,280,055.80x = 1,766,442.78 × 707,083.64
  4. Step 4: Simplify right side
    1,280,055.80x = 1,249,022,790,734.12
  5. Step 5: Solve for x
    x = 1,249,022,790,734.12/1,280,055.80
  6. Step 6: Final answer
    x = 975,756.52

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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.