Home / 1,340,064.40-2,010,143.80-429,274.56

Finding the Fourth Proportional to 1,340,064.40, 2,010,143.80 and 429,274.56

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Solution

The fourth proportional to 1,340,064.40, 2,010,143.80 and 429,274.56 is: 643,926.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,064.40 : 2,010,143.80 = 429,274.56 : x
  2. Step 2: Convert to fraction form
    1,340,064.40/2,010,143.80 = 429,274.56/x
  3. Step 3: Cross multiply
    1,340,064.40x = 2,010,143.80 × 429,274.56
  4. Step 4: Simplify right side
    1,340,064.40x = 862,903,595,281.73
  5. Step 5: Solve for x
    x = 862,903,595,281.73/1,340,064.40
  6. Step 6: Final answer
    x = 643,926.96

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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.