Home / 761,941-1,142,780.82-357,174.28

Finding the Fourth Proportional to 761,941, 1,142,780.82 and 357,174.28

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Solution

The fourth proportional to 761,941, 1,142,780.82 and 357,174.28 is: 535,700.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,941 : 1,142,780.82 = 357,174.28 : x
  2. Step 2: Convert to fraction form
    761,941/1,142,780.82 = 357,174.28/x
  3. Step 3: Cross multiply
    761,941x = 1,142,780.82 × 357,174.28
  4. Step 4: Simplify right side
    761,941x = 408,171,916,581.31
  5. Step 5: Solve for x
    x = 408,171,916,581.31/761,941
  6. Step 6: Final answer
    x = 535,700.16

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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.