Home / 739,868.28-1,021,038.75-449,381.76

Finding the Fourth Proportional to 739,868.28, 1,021,038.75 and 449,381.76

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Solution

The fourth proportional to 739,868.28, 1,021,038.75 and 449,381.76 is: 620,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,868.28 : 1,021,038.75 = 449,381.76 : x
  2. Step 2: Convert to fraction form
    739,868.28/1,021,038.75 = 449,381.76/x
  3. Step 3: Cross multiply
    739,868.28x = 1,021,038.75 × 449,381.76
  4. Step 4: Simplify right side
    739,868.28x = 458,836,190,503.20
  5. Step 5: Solve for x
    x = 458,836,190,503.20/739,868.28
  6. Step 6: Final answer
    x = 620,159.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.