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Finding the Fourth Proportional to 946.49, 1,307.04 and 651.24

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Solution

The fourth proportional to 946.49, 1,307.04 and 651.24 is: 899.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.49 : 1,307.04 = 651.24 : x
  2. Step 2: Convert to fraction form
    946.49/1,307.04 = 651.24/x
  3. Step 3: Cross multiply
    946.49x = 1,307.04 × 651.24
  4. Step 4: Simplify right side
    946.49x = 851,194.29
  5. Step 5: Solve for x
    x = 851,194.29/946.49
  6. Step 6: Final answer
    x = 899.32

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.