Home / 778,830.40-1,168,245.60-358,926.40

Finding the Fourth Proportional to 778,830.40, 1,168,245.60 and 358,926.40

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Solution

The fourth proportional to 778,830.40, 1,168,245.60 and 358,926.40 is: 538,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,830.40 : 1,168,245.60 = 358,926.40 : x
  2. Step 2: Convert to fraction form
    778,830.40/1,168,245.60 = 358,926.40/x
  3. Step 3: Cross multiply
    778,830.40x = 1,168,245.60 × 358,926.40
  4. Step 4: Simplify right side
    778,830.40x = 419,314,187,523.84
  5. Step 5: Solve for x
    x = 419,314,187,523.84/778,830.40
  6. Step 6: Final answer
    x = 538,389.60

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Similar ratio
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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.