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Finding the Fourth Proportional to 518,579.44, 778,000.38 and 144,602.44

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Solution

The fourth proportional to 518,579.44, 778,000.38 and 144,602.44 is: 216,940.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,579.44 : 778,000.38 = 144,602.44 : x
  2. Step 2: Convert to fraction form
    518,579.44/778,000.38 = 144,602.44/x
  3. Step 3: Cross multiply
    518,579.44x = 778,000.38 × 144,602.44
  4. Step 4: Simplify right side
    518,579.44x = 112,500,750,781.67
  5. Step 5: Solve for x
    x = 112,500,750,781.67/518,579.44
  6. Step 6: Final answer
    x = 216,940.25

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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.