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Finding the Fourth Proportional to 618.98, 924.51 and 532.58

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Solution

The fourth proportional to 618.98, 924.51 and 532.58 is: 795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.98 : 924.51 = 532.58 : x
  2. Step 2: Convert to fraction form
    618.98/924.51 = 532.58/x
  3. Step 3: Cross multiply
    618.98x = 924.51 × 532.58
  4. Step 4: Simplify right side
    618.98x = 492,372.91
  5. Step 5: Solve for x
    x = 492,372.91/618.98
  6. Step 6: Final answer
    x = 795.46

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Find fourth proportional to 309.49, 462.26 and 266.29
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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.