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Finding the Fourth Proportional to 518,676.16, 778,145.44 and 144,698.88

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Solution

The fourth proportional to 518,676.16, 778,145.44 and 144,698.88 is: 217,084.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,676.16 : 778,145.44 = 144,698.88 : x
  2. Step 2: Convert to fraction form
    518,676.16/778,145.44 = 144,698.88/x
  3. Step 3: Cross multiply
    518,676.16x = 778,145.44 × 144,698.88
  4. Step 4: Simplify right side
    518,676.16x = 112,596,773,645.11
  5. Step 5: Solve for x
    x = 112,596,773,645.11/518,676.16
  6. Step 6: Final answer
    x = 217,084.92

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1.5x scale

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.