Home / 439,619.40-659,429.10-282,155.40

Finding the Fourth Proportional to 439,619.40, 659,429.10 and 282,155.40

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Solution

The fourth proportional to 439,619.40, 659,429.10 and 282,155.40 is: 423,233.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,619.40 : 659,429.10 = 282,155.40 : x
  2. Step 2: Convert to fraction form
    439,619.40/659,429.10 = 282,155.40/x
  3. Step 3: Cross multiply
    439,619.40x = 659,429.10 × 282,155.40
  4. Step 4: Simplify right side
    439,619.40x = 186,061,481,482.14
  5. Step 5: Solve for x
    x = 186,061,481,482.14/439,619.40
  6. Step 6: Final answer
    x = 423,233.10

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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.