Home / 770,945.31-1,156,368.72-238,421.76

Finding the Fourth Proportional to 770,945.31, 1,156,368.72 and 238,421.76

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Solution

The fourth proportional to 770,945.31, 1,156,368.72 and 238,421.76 is: 357,617.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,945.31 : 1,156,368.72 = 238,421.76 : x
  2. Step 2: Convert to fraction form
    770,945.31/1,156,368.72 = 238,421.76/x
  3. Step 3: Cross multiply
    770,945.31x = 1,156,368.72 × 238,421.76
  4. Step 4: Simplify right side
    770,945.31x = 275,703,465,431.35
  5. Step 5: Solve for x
    x = 275,703,465,431.35/770,945.31
  6. Step 6: Final answer
    x = 357,617.41

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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.