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Finding the Fourth Proportional to 973.30, 1,342.83 and 624.19

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Solution

The fourth proportional to 973.30, 1,342.83 and 624.19 is: 861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.30 : 1,342.83 = 624.19 : x
  2. Step 2: Convert to fraction form
    973.30/1,342.83 = 624.19/x
  3. Step 3: Cross multiply
    973.30x = 1,342.83 × 624.19
  4. Step 4: Simplify right side
    973.30x = 838,181.06
  5. Step 5: Solve for x
    x = 838,181.06/973.30
  6. Step 6: Final answer
    x = 861.17

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Double scale
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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.