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Finding the Fourth Proportional to 945.96, 1,305.46 and 526.35

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Solution

The fourth proportional to 945.96, 1,305.46 and 526.35 is: 726.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    945.96 : 1,305.46 = 526.35 : x
  2. Step 2: Convert to fraction form
    945.96/1,305.46 = 526.35/x
  3. Step 3: Cross multiply
    945.96x = 1,305.46 × 526.35
  4. Step 4: Simplify right side
    945.96x = 687,128.87
  5. Step 5: Solve for x
    x = 687,128.87/945.96
  6. Step 6: Final answer
    x = 726.38

Related Problems

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Half scale
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Double scale
Find fourth proportional to 946.96, 1,306.84 and 527.35
Similar ratio
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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.