Home / 1,280,336.88-1,766,714.31-707,342.88

Finding the Fourth Proportional to 1,280,336.88, 1,766,714.31 and 707,342.88

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Solution

The fourth proportional to 1,280,336.88, 1,766,714.31 and 707,342.88 is: 976,049.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,336.88 : 1,766,714.31 = 707,342.88 : x
  2. Step 2: Convert to fraction form
    1,280,336.88/1,766,714.31 = 707,342.88/x
  3. Step 3: Cross multiply
    1,280,336.88x = 1,766,714.31 × 707,342.88
  4. Step 4: Simplify right side
    1,280,336.88x = 1,249,672,788,172.61
  5. Step 5: Solve for x
    x = 1,249,672,788,172.61/1,280,336.88
  6. Step 6: Final answer
    x = 976,049.98

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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.