Home / 644,053.12-966,243.72-289,201.36

Finding the Fourth Proportional to 644,053.12, 966,243.72 and 289,201.36

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Solution

The fourth proportional to 644,053.12, 966,243.72 and 289,201.36 is: 433,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,053.12 : 966,243.72 = 289,201.36 : x
  2. Step 2: Convert to fraction form
    644,053.12/966,243.72 = 289,201.36/x
  3. Step 3: Cross multiply
    644,053.12x = 966,243.72 × 289,201.36
  4. Step 4: Simplify right side
    644,053.12x = 279,438,997,915.46
  5. Step 5: Solve for x
    x = 279,438,997,915.46/644,053.12
  6. Step 6: Final answer
    x = 433,875.70

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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.