Home / 778,829.40-1,168,157.70-217,920.60

Finding the Fourth Proportional to 778,829.40, 1,168,157.70 and 217,920.60

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Solution

The fourth proportional to 778,829.40, 1,168,157.70 and 217,920.60 is: 326,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,829.40 : 1,168,157.70 = 217,920.60 : x
  2. Step 2: Convert to fraction form
    778,829.40/1,168,157.70 = 217,920.60/x
  3. Step 3: Cross multiply
    778,829.40x = 1,168,157.70 × 217,920.60
  4. Step 4: Simplify right side
    778,829.40x = 254,565,626,878.62
  5. Step 5: Solve for x
    x = 254,565,626,878.62/778,829.40
  6. Step 6: Final answer
    x = 326,856.72

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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.