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Finding the Fourth Proportional to 846.70, 1,168.42 and 473.68

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Solution

The fourth proportional to 846.70, 1,168.42 and 473.68 is: 653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.70 : 1,168.42 = 473.68 : x
  2. Step 2: Convert to fraction form
    846.70/1,168.42 = 473.68/x
  3. Step 3: Cross multiply
    846.70x = 1,168.42 × 473.68
  4. Step 4: Simplify right side
    846.70x = 553,457.19
  5. Step 5: Solve for x
    x = 553,457.19/846.70
  6. Step 6: Final answer
    x = 653.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.