Home / 689,040.53-1,033,698.75-385,865.83

Finding the Fourth Proportional to 689,040.53, 1,033,698.75 and 385,865.83

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Solution

The fourth proportional to 689,040.53, 1,033,698.75 and 385,865.83 is: 578,876.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,040.53 : 1,033,698.75 = 385,865.83 : x
  2. Step 2: Convert to fraction form
    689,040.53/1,033,698.75 = 385,865.83/x
  3. Step 3: Cross multiply
    689,040.53x = 1,033,698.75 × 385,865.83
  4. Step 4: Simplify right side
    689,040.53x = 398,869,023,554.47
  5. Step 5: Solve for x
    x = 398,869,023,554.47/689,040.53
  6. Step 6: Final answer
    x = 578,876.00

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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.