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Finding the Fourth Proportional to 607.69, 837.80 and 508.16

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Solution

The fourth proportional to 607.69, 837.80 and 508.16 is: 700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.69 : 837.80 = 508.16 : x
  2. Step 2: Convert to fraction form
    607.69/837.80 = 508.16/x
  3. Step 3: Cross multiply
    607.69x = 837.80 × 508.16
  4. Step 4: Simplify right side
    607.69x = 425,736.45
  5. Step 5: Solve for x
    x = 425,736.45/607.69
  6. Step 6: Final answer
    x = 700.58

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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.