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Finding the Fourth Proportional to 904.35, 1,248.03 and 609.69

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Solution

The fourth proportional to 904.35, 1,248.03 and 609.69 is: 841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.35 : 1,248.03 = 609.69 : x
  2. Step 2: Convert to fraction form
    904.35/1,248.03 = 609.69/x
  3. Step 3: Cross multiply
    904.35x = 1,248.03 × 609.69
  4. Step 4: Simplify right side
    904.35x = 760,911.41
  5. Step 5: Solve for x
    x = 760,911.41/904.35
  6. Step 6: Final answer
    x = 841.39

Related Problems

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Half scale
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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.