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Finding the Fourth Proportional to 554,928.30, 832,392.45 and 318,732.30

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Solution

The fourth proportional to 554,928.30, 832,392.45 and 318,732.30 is: 478,098.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,928.30 : 832,392.45 = 318,732.30 : x
  2. Step 2: Convert to fraction form
    554,928.30/832,392.45 = 318,732.30/x
  3. Step 3: Cross multiply
    554,928.30x = 832,392.45 × 318,732.30
  4. Step 4: Simplify right side
    554,928.30x = 265,310,360,091.14
  5. Step 5: Solve for x
    x = 265,310,360,091.14/554,928.30
  6. Step 6: Final answer
    x = 478,098.45

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Double scale
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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.