Home / 918,073.40-1,376,721.30-444,903.80

Finding the Fourth Proportional to 918,073.40, 1,376,721.30 and 444,903.80

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Solution

The fourth proportional to 918,073.40, 1,376,721.30 and 444,903.80 is: 667,167.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,073.40 : 1,376,721.30 = 444,903.80 : x
  2. Step 2: Convert to fraction form
    918,073.40/1,376,721.30 = 444,903.80/x
  3. Step 3: Cross multiply
    918,073.40x = 1,376,721.30 × 444,903.80
  4. Step 4: Simplify right side
    918,073.40x = 612,508,537,910.94
  5. Step 5: Solve for x
    x = 612,508,537,910.94/918,073.40
  6. Step 6: Final answer
    x = 667,167.29

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1.5x scale

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.