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Finding the Fourth Proportional to 560.95, 841.11 and 430.62

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Solution

The fourth proportional to 560.95, 841.11 and 430.62 is: 645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.95 : 841.11 = 430.62 : x
  2. Step 2: Convert to fraction form
    560.95/841.11 = 430.62/x
  3. Step 3: Cross multiply
    560.95x = 841.11 × 430.62
  4. Step 4: Simplify right side
    560.95x = 362,201.97
  5. Step 5: Solve for x
    x = 362,201.97/560.95
  6. Step 6: Final answer
    x = 645.69

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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.