Home / 723,815.69-1,085,731.39-218,381.19

Finding the Fourth Proportional to 723,815.69, 1,085,731.39 and 218,381.19

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Solution

The fourth proportional to 723,815.69, 1,085,731.39 and 218,381.19 is: 327,574.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,815.69 : 1,085,731.39 = 218,381.19 : x
  2. Step 2: Convert to fraction form
    723,815.69/1,085,731.39 = 218,381.19/x
  3. Step 3: Cross multiply
    723,815.69x = 1,085,731.39 × 218,381.19
  4. Step 4: Simplify right side
    723,815.69x = 237,103,312,968.55
  5. Step 5: Solve for x
    x = 237,103,312,968.55/723,815.69
  6. Step 6: Final answer
    x = 327,574.15

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1.5x scale

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.