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Finding the Fourth Proportional to 834.76, 1,152.14 and 555.02

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Solution

The fourth proportional to 834.76, 1,152.14 and 555.02 is: 766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.76 : 1,152.14 = 555.02 : x
  2. Step 2: Convert to fraction form
    834.76/1,152.14 = 555.02/x
  3. Step 3: Cross multiply
    834.76x = 1,152.14 × 555.02
  4. Step 4: Simplify right side
    834.76x = 639,460.74
  5. Step 5: Solve for x
    x = 639,460.74/834.76
  6. Step 6: Final answer
    x = 766.04

Related Problems

Find fourth proportional to 417.38, 576.07 and 277.51
Half scale
Find fourth proportional to 1,669.52, 2,304.28 and 1,110.04
Double scale
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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.