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Finding the Fourth Proportional to 560.79, 845.78 and 554.65

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Solution

The fourth proportional to 560.79, 845.78 and 554.65 is: 836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.79 : 845.78 = 554.65 : x
  2. Step 2: Convert to fraction form
    560.79/845.78 = 554.65/x
  3. Step 3: Cross multiply
    560.79x = 845.78 × 554.65
  4. Step 4: Simplify right side
    560.79x = 469,106.99
  5. Step 5: Solve for x
    x = 469,106.99/560.79
  6. Step 6: Final answer
    x = 836.51

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.