Home / 770,575.68-1,155,746.88-209,653.92

Finding the Fourth Proportional to 770,575.68, 1,155,746.88 and 209,653.92

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Solution

The fourth proportional to 770,575.68, 1,155,746.88 and 209,653.92 is: 314,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,575.68 : 1,155,746.88 = 209,653.92 : x
  2. Step 2: Convert to fraction form
    770,575.68/1,155,746.88 = 209,653.92/x
  3. Step 3: Cross multiply
    770,575.68x = 1,155,746.88 × 209,653.92
  4. Step 4: Simplify right side
    770,575.68x = 242,306,863,919.77
  5. Step 5: Solve for x
    x = 242,306,863,919.77/770,575.68
  6. Step 6: Final answer
    x = 314,449.15

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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.