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Finding the Fourth Proportional to 459,645.84, 689,466.45 and 118,088.89

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Solution

The fourth proportional to 459,645.84, 689,466.45 and 118,088.89 is: 177,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,645.84 : 689,466.45 = 118,088.89 : x
  2. Step 2: Convert to fraction form
    459,645.84/689,466.45 = 118,088.89/x
  3. Step 3: Cross multiply
    459,645.84x = 689,466.45 × 118,088.89
  4. Step 4: Simplify right side
    459,645.84x = 81,418,330,439.78
  5. Step 5: Solve for x
    x = 81,418,330,439.78/459,645.84
  6. Step 6: Final answer
    x = 177,132.75

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Similar ratio
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1.5x scale

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.