Home / 1,329,422.20-1,993,715.02-430,655.40

Finding the Fourth Proportional to 1,329,422.20, 1,993,715.02 and 430,655.40

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Solution

The fourth proportional to 1,329,422.20, 1,993,715.02 and 430,655.40 is: 645,847.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,422.20 : 1,993,715.02 = 430,655.40 : x
  2. Step 2: Convert to fraction form
    1,329,422.20/1,993,715.02 = 430,655.40/x
  3. Step 3: Cross multiply
    1,329,422.20x = 1,993,715.02 × 430,655.40
  4. Step 4: Simplify right side
    1,329,422.20x = 858,604,139,424.11
  5. Step 5: Solve for x
    x = 858,604,139,424.11/1,329,422.20
  6. Step 6: Final answer
    x = 645,847.60

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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.