Home / 770,747.32-1,155,158.16-371,313.64

Finding the Fourth Proportional to 770,747.32, 1,155,158.16 and 371,313.64

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Solution

The fourth proportional to 770,747.32, 1,155,158.16 and 371,313.64 is: 556,506.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,747.32 : 1,155,158.16 = 371,313.64 : x
  2. Step 2: Convert to fraction form
    770,747.32/1,155,158.16 = 371,313.64/x
  3. Step 3: Cross multiply
    770,747.32x = 1,155,158.16 × 371,313.64
  4. Step 4: Simplify right side
    770,747.32x = 428,925,981,165.30
  5. Step 5: Solve for x
    x = 428,925,981,165.30/770,747.32
  6. Step 6: Final answer
    x = 556,506.61

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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.