Home / 770,441.20-1,156,007.40-349,500.40

Finding the Fourth Proportional to 770,441.20, 1,156,007.40 and 349,500.40

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Solution

The fourth proportional to 770,441.20, 1,156,007.40 and 349,500.40 is: 524,407.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,441.20 : 1,156,007.40 = 349,500.40 : x
  2. Step 2: Convert to fraction form
    770,441.20/1,156,007.40 = 349,500.40/x
  3. Step 3: Cross multiply
    770,441.20x = 1,156,007.40 × 349,500.40
  4. Step 4: Simplify right side
    770,441.20x = 404,025,048,702.96
  5. Step 5: Solve for x
    x = 404,025,048,702.96/770,441.20
  6. Step 6: Final answer
    x = 524,407.38

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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.