Home / 469,746.11-648,417.74-278,759.49

Finding the Fourth Proportional to 469,746.11, 648,417.74 and 278,759.49

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Solution

The fourth proportional to 469,746.11, 648,417.74 and 278,759.49 is: 384,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,746.11 : 648,417.74 = 278,759.49 : x
  2. Step 2: Convert to fraction form
    469,746.11/648,417.74 = 278,759.49/x
  3. Step 3: Cross multiply
    469,746.11x = 648,417.74 × 278,759.49
  4. Step 4: Simplify right side
    469,746.11x = 180,752,597,115.56
  5. Step 5: Solve for x
    x = 180,752,597,115.56/469,746.11
  6. Step 6: Final answer
    x = 384,787.86

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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.