Home / 1,329,434.20-1,993,733.02-430,667.40

Finding the Fourth Proportional to 1,329,434.20, 1,993,733.02 and 430,667.40

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Solution

The fourth proportional to 1,329,434.20, 1,993,733.02 and 430,667.40 is: 645,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,434.20 : 1,993,733.02 = 430,667.40 : x
  2. Step 2: Convert to fraction form
    1,329,434.20/1,993,733.02 = 430,667.40/x
  3. Step 3: Cross multiply
    1,329,434.20x = 1,993,733.02 × 430,667.40
  4. Step 4: Simplify right side
    1,329,434.20x = 858,635,816,017.55
  5. Step 5: Solve for x
    x = 858,635,816,017.55/1,329,434.20
  6. Step 6: Final answer
    x = 645,865.60

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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.