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Finding the Fourth Proportional to 555.84, 766.56 and 468.36

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Solution

The fourth proportional to 555.84, 766.56 and 468.36 is: 645.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.84 : 766.56 = 468.36 : x
  2. Step 2: Convert to fraction form
    555.84/766.56 = 468.36/x
  3. Step 3: Cross multiply
    555.84x = 766.56 × 468.36
  4. Step 4: Simplify right side
    555.84x = 359,026.04
  5. Step 5: Solve for x
    x = 359,026.04/555.84
  6. Step 6: Final answer
    x = 645.92

Related Problems

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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.