Home / 788,920.40-1,183,672.20-315,945.20

Finding the Fourth Proportional to 788,920.40, 1,183,672.20 and 315,945.20

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Solution

The fourth proportional to 788,920.40, 1,183,672.20 and 315,945.20 is: 474,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,920.40 : 1,183,672.20 = 315,945.20 : x
  2. Step 2: Convert to fraction form
    788,920.40/1,183,672.20 = 315,945.20/x
  3. Step 3: Cross multiply
    788,920.40x = 1,183,672.20 × 315,945.20
  4. Step 4: Simplify right side
    788,920.40x = 373,975,549,963.44
  5. Step 5: Solve for x
    x = 373,975,549,963.44/788,920.40
  6. Step 6: Final answer
    x = 474,034.58

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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.