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Finding the Fourth Proportional to 973.50, 1,343.43 and 624.19

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Solution

The fourth proportional to 973.50, 1,343.43 and 624.19 is: 861.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.50 : 1,343.43 = 624.19 : x
  2. Step 2: Convert to fraction form
    973.50/1,343.43 = 624.19/x
  3. Step 3: Cross multiply
    973.50x = 1,343.43 × 624.19
  4. Step 4: Simplify right side
    973.50x = 838,555.57
  5. Step 5: Solve for x
    x = 838,555.57/973.50
  6. Step 6: Final answer
    x = 861.38

Related Problems

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Half scale
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Double scale
Find fourth proportional to 974.50, 1,344.81 and 625.19
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.