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Finding the Fourth Proportional to 487,904.40, 731,856.60 and 188,398.80

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Solution

The fourth proportional to 487,904.40, 731,856.60 and 188,398.80 is: 282,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,904.40 : 731,856.60 = 188,398.80 : x
  2. Step 2: Convert to fraction form
    487,904.40/731,856.60 = 188,398.80/x
  3. Step 3: Cross multiply
    487,904.40x = 731,856.60 × 188,398.80
  4. Step 4: Simplify right side
    487,904.40x = 137,880,905,212.08
  5. Step 5: Solve for x
    x = 137,880,905,212.08/487,904.40
  6. Step 6: Final answer
    x = 282,598.20

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.