Home / 1,267,877.88-1,901,116.98-520,448.76

Finding the Fourth Proportional to 1,267,877.88, 1,901,116.98 and 520,448.76

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Solution

The fourth proportional to 1,267,877.88, 1,901,116.98 and 520,448.76 is: 780,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,877.88 : 1,901,116.98 = 520,448.76 : x
  2. Step 2: Convert to fraction form
    1,267,877.88/1,901,116.98 = 520,448.76/x
  3. Step 3: Cross multiply
    1,267,877.88x = 1,901,116.98 × 520,448.76
  4. Step 4: Simplify right side
    1,267,877.88x = 989,433,974,855.95
  5. Step 5: Solve for x
    x = 989,433,974,855.95/1,267,877.88
  6. Step 6: Final answer
    x = 780,385.86

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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.