Home / 761,584.10-1,142,388.28-288,142.34

Finding the Fourth Proportional to 761,584.10, 1,142,388.28 and 288,142.34

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Solution

The fourth proportional to 761,584.10, 1,142,388.28 and 288,142.34 is: 432,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,584.10 : 1,142,388.28 = 288,142.34 : x
  2. Step 2: Convert to fraction form
    761,584.10/1,142,388.28 = 288,142.34/x
  3. Step 3: Cross multiply
    761,584.10x = 1,142,388.28 × 288,142.34
  4. Step 4: Simplify right side
    761,584.10x = 329,170,432,187.78
  5. Step 5: Solve for x
    x = 329,170,432,187.78/761,584.10
  6. Step 6: Final answer
    x = 432,218.10

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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.