Home / 1,280,109.12-1,766,653.92-707,199.36

Finding the Fourth Proportional to 1,280,109.12, 1,766,653.92 and 707,199.36

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Solution

The fourth proportional to 1,280,109.12, 1,766,653.92 and 707,199.36 is: 975,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,109.12 : 1,766,653.92 = 707,199.36 : x
  2. Step 2: Convert to fraction form
    1,280,109.12/1,766,653.92 = 707,199.36/x
  3. Step 3: Cross multiply
    1,280,109.12x = 1,766,653.92 × 707,199.36
  4. Step 4: Simplify right side
    1,280,109.12x = 1,249,376,521,565.49
  5. Step 5: Solve for x
    x = 1,249,376,521,565.49/1,280,109.12
  6. Step 6: Final answer
    x = 975,992.20

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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.