Home / 3,490,675.80-5,236,013.70-931,885.80

Finding the Fourth Proportional to 3,490,675.80, 5,236,013.70 and 931,885.80

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Solution

The fourth proportional to 3,490,675.80, 5,236,013.70 and 931,885.80 is: 1,397,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490,675.80 : 5,236,013.70 = 931,885.80 : x
  2. Step 2: Convert to fraction form
    3,490,675.80/5,236,013.70 = 931,885.80/x
  3. Step 3: Cross multiply
    3,490,675.80x = 5,236,013.70 × 931,885.80
  4. Step 4: Simplify right side
    3,490,675.80x = 4,879,366,815,635.46
  5. Step 5: Solve for x
    x = 4,879,366,815,635.46/3,490,675.80
  6. Step 6: Final answer
    x = 1,397,828.70

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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.