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Finding the Fourth Proportional to 816.07, 1,126.17 and 466.75

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Solution

The fourth proportional to 816.07, 1,126.17 and 466.75 is: 644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    816.07 : 1,126.17 = 466.75 : x
  2. Step 2: Convert to fraction form
    816.07/1,126.17 = 466.75/x
  3. Step 3: Cross multiply
    816.07x = 1,126.17 × 466.75
  4. Step 4: Simplify right side
    816.07x = 525,637.51
  5. Step 5: Solve for x
    x = 525,637.51/816.07
  6. Step 6: Final answer
    x = 644.11

Related Problems

Find fourth proportional to 408.03, 563.08 and 233.38
Half scale
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Double scale
Find fourth proportional to 817.07, 1,127.54 and 467.75
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.