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Finding the Fourth Proportional to 509, 700.88 and 435.16

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Solution

The fourth proportional to 509, 700.88 and 435.16 is: 599.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    509 : 700.88 = 435.16 : x
  2. Step 2: Convert to fraction form
    509/700.88 = 435.16/x
  3. Step 3: Cross multiply
    509x = 700.88 × 435.16
  4. Step 4: Simplify right side
    509x = 304,989.26
  5. Step 5: Solve for x
    x = 304,989.26/509
  6. Step 6: Final answer
    x = 599.19

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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.