Home / 793,358.20-1,189,915.80-260,880.40

Finding the Fourth Proportional to 793,358.20, 1,189,915.80 and 260,880.40

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Solution

The fourth proportional to 793,358.20, 1,189,915.80 and 260,880.40 is: 391,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,358.20 : 1,189,915.80 = 260,880.40 : x
  2. Step 2: Convert to fraction form
    793,358.20/1,189,915.80 = 260,880.40/x
  3. Step 3: Cross multiply
    793,358.20x = 1,189,915.80 × 260,880.40
  4. Step 4: Simplify right side
    793,358.20x = 310,425,709,870.32
  5. Step 5: Solve for x
    x = 310,425,709,870.32/793,358.20
  6. Step 6: Final answer
    x = 391,280.65

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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.