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Finding the Fourth Proportional to 509.58, 702.54 and 416.19

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Solution

The fourth proportional to 509.58, 702.54 and 416.19 is: 573.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.58 : 702.54 = 416.19 : x
  2. Step 2: Convert to fraction form
    509.58/702.54 = 416.19/x
  3. Step 3: Cross multiply
    509.58x = 702.54 × 416.19
  4. Step 4: Simplify right side
    509.58x = 292,390.12
  5. Step 5: Solve for x
    x = 292,390.12/509.58
  6. Step 6: Final answer
    x = 573.79

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.