Home / 899,381.40-1,348,899.30-268,315.80

Finding the Fourth Proportional to 899,381.40, 1,348,899.30 and 268,315.80

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Solution

The fourth proportional to 899,381.40, 1,348,899.30 and 268,315.80 is: 402,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,381.40 : 1,348,899.30 = 268,315.80 : x
  2. Step 2: Convert to fraction form
    899,381.40/1,348,899.30 = 268,315.80/x
  3. Step 3: Cross multiply
    899,381.40x = 1,348,899.30 × 268,315.80
  4. Step 4: Simplify right side
    899,381.40x = 361,930,994,798.94
  5. Step 5: Solve for x
    x = 361,930,994,798.94/899,381.40
  6. Step 6: Final answer
    x = 402,422.15

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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.