Home / 1,329,430.20-1,993,727.02-430,663.40

Finding the Fourth Proportional to 1,329,430.20, 1,993,727.02 and 430,663.40

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Solution

The fourth proportional to 1,329,430.20, 1,993,727.02 and 430,663.40 is: 645,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,430.20 : 1,993,727.02 = 430,663.40 : x
  2. Step 2: Convert to fraction form
    1,329,430.20/1,993,727.02 = 430,663.40/x
  3. Step 3: Cross multiply
    1,329,430.20x = 1,993,727.02 × 430,663.40
  4. Step 4: Simplify right side
    1,329,430.20x = 858,625,257,105.07
  5. Step 5: Solve for x
    x = 858,625,257,105.07/1,329,430.20
  6. Step 6: Final answer
    x = 645,859.60

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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.