Home / 777,521.30-1,165,878.75-356,434.58

Finding the Fourth Proportional to 777,521.30, 1,165,878.75 and 356,434.58

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Solution

The fourth proportional to 777,521.30, 1,165,878.75 and 356,434.58 is: 534,467.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,521.30 : 1,165,878.75 = 356,434.58 : x
  2. Step 2: Convert to fraction form
    777,521.30/1,165,878.75 = 356,434.58/x
  3. Step 3: Cross multiply
    777,521.30x = 1,165,878.75 × 356,434.58
  4. Step 4: Simplify right side
    777,521.30x = 415,559,502,587.18
  5. Step 5: Solve for x
    x = 415,559,502,587.18/777,521.30
  6. Step 6: Final answer
    x = 534,467.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.