Home / 776,441.29-1,071,211.65-449,575.89

Finding the Fourth Proportional to 776,441.29, 1,071,211.65 and 449,575.89

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Solution

The fourth proportional to 776,441.29, 1,071,211.65 and 449,575.89 is: 620,254.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,441.29 : 1,071,211.65 = 449,575.89 : x
  2. Step 2: Convert to fraction form
    776,441.29/1,071,211.65 = 449,575.89/x
  3. Step 3: Cross multiply
    776,441.29x = 1,071,211.65 × 449,575.89
  4. Step 4: Simplify right side
    776,441.29x = 481,590,930,927.12
  5. Step 5: Solve for x
    x = 481,590,930,927.12/776,441.29
  6. Step 6: Final answer
    x = 620,254.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.