Home / 1,280,437.34-1,766,999.90-707,473.43

Finding the Fourth Proportional to 1,280,437.34, 1,766,999.90 and 707,473.43

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Solution

The fourth proportional to 1,280,437.34, 1,766,999.90 and 707,473.43 is: 976,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,437.34 : 1,766,999.90 = 707,473.43 : x
  2. Step 2: Convert to fraction form
    1,280,437.34/1,766,999.90 = 707,473.43/x
  3. Step 3: Cross multiply
    1,280,437.34x = 1,766,999.90 × 707,473.43
  4. Step 4: Simplify right side
    1,280,437.34x = 1,250,105,467,690.29
  5. Step 5: Solve for x
    x = 1,250,105,467,690.29/1,280,437.34
  6. Step 6: Final answer
    x = 976,311.32

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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.