Home / 772,117.06-1,157,780.71-322,715.29

Finding the Fourth Proportional to 772,117.06, 1,157,780.71 and 322,715.29

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Solution

The fourth proportional to 772,117.06, 1,157,780.71 and 322,715.29 is: 483,907.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,117.06 : 1,157,780.71 = 322,715.29 : x
  2. Step 2: Convert to fraction form
    772,117.06/1,157,780.71 = 322,715.29/x
  3. Step 3: Cross multiply
    772,117.06x = 1,157,780.71 × 322,715.29
  4. Step 4: Simplify right side
    772,117.06x = 373,633,537,584.06
  5. Step 5: Solve for x
    x = 373,633,537,584.06/772,117.06
  6. Step 6: Final answer
    x = 483,907.89

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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.