Home / 427,478.10-589,937.14-236,488.20

Finding the Fourth Proportional to 427,478.10, 589,937.14 and 236,488.20

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Solution

The fourth proportional to 427,478.10, 589,937.14 and 236,488.20 is: 326,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,478.10 : 589,937.14 = 236,488.20 : x
  2. Step 2: Convert to fraction form
    427,478.10/589,937.14 = 236,488.20/x
  3. Step 3: Cross multiply
    427,478.10x = 589,937.14 × 236,488.20
  4. Step 4: Simplify right side
    427,478.10x = 139,513,172,351.75
  5. Step 5: Solve for x
    x = 139,513,172,351.75/427,478.10
  6. Step 6: Final answer
    x = 326,363.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.