Home / 439,787.08-606,971.31-278,657.15

Finding the Fourth Proportional to 439,787.08, 606,971.31 and 278,657.15

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Solution

The fourth proportional to 439,787.08, 606,971.31 and 278,657.15 is: 384,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,787.08 : 606,971.31 = 278,657.15 : x
  2. Step 2: Convert to fraction form
    439,787.08/606,971.31 = 278,657.15/x
  3. Step 3: Cross multiply
    439,787.08x = 606,971.31 × 278,657.15
  4. Step 4: Simplify right side
    439,787.08x = 169,136,895,376.37
  5. Step 5: Solve for x
    x = 169,136,895,376.37/439,787.08
  6. Step 6: Final answer
    x = 384,588.15

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1.5x scale

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.