Home / 1,329,048.40-1,993,864.20-430,337.20

Finding the Fourth Proportional to 1,329,048.40, 1,993,864.20 and 430,337.20

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Solution

The fourth proportional to 1,329,048.40, 1,993,864.20 and 430,337.20 is: 645,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,048.40 : 1,993,864.20 = 430,337.20 : x
  2. Step 2: Convert to fraction form
    1,329,048.40/1,993,864.20 = 430,337.20/x
  3. Step 3: Cross multiply
    1,329,048.40x = 1,993,864.20 × 430,337.20
  4. Step 4: Simplify right side
    1,329,048.40x = 858,033,937,008.24
  5. Step 5: Solve for x
    x = 858,033,937,008.24/1,329,048.40
  6. Step 6: Final answer
    x = 645,600.22

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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.