Home / 439,721.40-659,582.10-282,257.40

Finding the Fourth Proportional to 439,721.40, 659,582.10 and 282,257.40

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Solution

The fourth proportional to 439,721.40, 659,582.10 and 282,257.40 is: 423,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,721.40 : 659,582.10 = 282,257.40 : x
  2. Step 2: Convert to fraction form
    439,721.40/659,582.10 = 282,257.40/x
  3. Step 3: Cross multiply
    439,721.40x = 659,582.10 × 282,257.40
  4. Step 4: Simplify right side
    439,721.40x = 186,171,928,632.54
  5. Step 5: Solve for x
    x = 186,171,928,632.54/439,721.40
  6. Step 6: Final answer
    x = 423,386.10

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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.