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Finding the Fourth Proportional to 951.04, 1,312.18 and 558.19

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Solution

The fourth proportional to 951.04, 1,312.18 and 558.19 is: 770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.04 : 1,312.18 = 558.19 : x
  2. Step 2: Convert to fraction form
    951.04/1,312.18 = 558.19/x
  3. Step 3: Cross multiply
    951.04x = 1,312.18 × 558.19
  4. Step 4: Simplify right side
    951.04x = 732,445.75
  5. Step 5: Solve for x
    x = 732,445.75/951.04
  6. Step 6: Final answer
    x = 770.15

Related Problems

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Half scale
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Double scale
Find fourth proportional to 952.04, 1,313.56 and 559.19
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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.