Home / 761,876.16-1,142,850.69-628,509.12

Finding the Fourth Proportional to 761,876.16, 1,142,850.69 and 628,509.12

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Solution

The fourth proportional to 761,876.16, 1,142,850.69 and 628,509.12 is: 942,793.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,876.16 : 1,142,850.69 = 628,509.12 : x
  2. Step 2: Convert to fraction form
    761,876.16/1,142,850.69 = 628,509.12/x
  3. Step 3: Cross multiply
    761,876.16x = 1,142,850.69 × 628,509.12
  4. Step 4: Simplify right side
    761,876.16x = 718,292,081,463.29
  5. Step 5: Solve for x
    x = 718,292,081,463.29/761,876.16
  6. Step 6: Final answer
    x = 942,793.75

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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.