Home / 770,438.79-1,155,815.80-264,934.12

Finding the Fourth Proportional to 770,438.79, 1,155,815.80 and 264,934.12

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Solution

The fourth proportional to 770,438.79, 1,155,815.80 and 264,934.12 is: 397,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,438.79 : 1,155,815.80 = 264,934.12 : x
  2. Step 2: Convert to fraction form
    770,438.79/1,155,815.80 = 264,934.12/x
  3. Step 3: Cross multiply
    770,438.79x = 1,155,815.80 × 264,934.12
  4. Step 4: Simplify right side
    770,438.79x = 306,215,041,855.10
  5. Step 5: Solve for x
    x = 306,215,041,855.10/770,438.79
  6. Step 6: Final answer
    x = 397,455.38

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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.