Home / 1,288,468.49-1,778,107.93-707,745.32

Finding the Fourth Proportional to 1,288,468.49, 1,778,107.93 and 707,745.32

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Solution

The fourth proportional to 1,288,468.49, 1,778,107.93 and 707,745.32 is: 976,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,468.49 : 1,778,107.93 = 707,745.32 : x
  2. Step 2: Convert to fraction form
    1,288,468.49/1,778,107.93 = 707,745.32/x
  3. Step 3: Cross multiply
    1,288,468.49x = 1,778,107.93 × 707,745.32
  4. Step 4: Simplify right side
    1,288,468.49x = 1,258,447,565,901.46
  5. Step 5: Solve for x
    x = 1,258,447,565,901.46/1,288,468.49
  6. Step 6: Final answer
    x = 976,700.30

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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.