Home / 786,618.35-1,085,616.66-480,873.72

Finding the Fourth Proportional to 786,618.35, 1,085,616.66 and 480,873.72

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Solution

The fourth proportional to 786,618.35, 1,085,616.66 and 480,873.72 is: 663,656.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,618.35 : 1,085,616.66 = 480,873.72 : x
  2. Step 2: Convert to fraction form
    786,618.35/1,085,616.66 = 480,873.72/x
  3. Step 3: Cross multiply
    786,618.35x = 1,085,616.66 × 480,873.72
  4. Step 4: Simplify right side
    786,618.35x = 522,044,521,788.18
  5. Step 5: Solve for x
    x = 522,044,521,788.18/786,618.35
  6. Step 6: Final answer
    x = 663,656.68

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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.