Home / 787,746.72-1,182,005.68-488,147.20

Finding the Fourth Proportional to 787,746.72, 1,182,005.68 and 488,147.20

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Solution

The fourth proportional to 787,746.72, 1,182,005.68 and 488,147.20 is: 732,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,746.72 : 1,182,005.68 = 488,147.20 : x
  2. Step 2: Convert to fraction form
    787,746.72/1,182,005.68 = 488,147.20/x
  3. Step 3: Cross multiply
    787,746.72x = 1,182,005.68 × 488,147.20
  4. Step 4: Simplify right side
    787,746.72x = 576,992,763,076.10
  5. Step 5: Solve for x
    x = 576,992,763,076.10/787,746.72
  6. Step 6: Final answer
    x = 732,459.75

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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.