Home / 1,280,649.29-1,767,296.63-707,689.45

Finding the Fourth Proportional to 1,280,649.29, 1,767,296.63 and 707,689.45

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Solution

The fourth proportional to 1,280,649.29, 1,767,296.63 and 707,689.45 is: 976,611.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,649.29 : 1,767,296.63 = 707,689.45 : x
  2. Step 2: Convert to fraction form
    1,280,649.29/1,767,296.63 = 707,689.45/x
  3. Step 3: Cross multiply
    1,280,649.29x = 1,767,296.63 × 707,689.45
  4. Step 4: Simplify right side
    1,280,649.29x = 1,250,697,167,696.62
  5. Step 5: Solve for x
    x = 1,250,697,167,696.62/1,280,649.29
  6. Step 6: Final answer
    x = 976,611.77

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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.