Home / 939,429.20-1,409,398.04-669,897.88

Finding the Fourth Proportional to 939,429.20, 1,409,398.04 and 669,897.88

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Solution

The fourth proportional to 939,429.20, 1,409,398.04 and 669,897.88 is: 1,005,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,429.20 : 1,409,398.04 = 669,897.88 : x
  2. Step 2: Convert to fraction form
    939,429.20/1,409,398.04 = 669,897.88/x
  3. Step 3: Cross multiply
    939,429.20x = 1,409,398.04 × 669,897.88
  4. Step 4: Simplify right side
    939,429.20x = 944,152,759,072.16
  5. Step 5: Solve for x
    x = 944,152,759,072.16/939,429.20
  6. Step 6: Final answer
    x = 1,005,028.12

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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.