Home / 1,165,064.79-1,607,764.28-641,790.04

Finding the Fourth Proportional to 1,165,064.79, 1,607,764.28 and 641,790.04

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Solution

The fourth proportional to 1,165,064.79, 1,607,764.28 and 641,790.04 is: 885,656.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,064.79 : 1,607,764.28 = 641,790.04 : x
  2. Step 2: Convert to fraction form
    1,165,064.79/1,607,764.28 = 641,790.04/x
  3. Step 3: Cross multiply
    1,165,064.79x = 1,607,764.28 × 641,790.04
  4. Step 4: Simplify right side
    1,165,064.79x = 1,031,847,101,571.77
  5. Step 5: Solve for x
    x = 1,031,847,101,571.77/1,165,064.79
  6. Step 6: Final answer
    x = 885,656.41

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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.