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Finding the Fourth Proportional to 536,412.60, 804,618.90 and 480,425.40

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Solution

The fourth proportional to 536,412.60, 804,618.90 and 480,425.40 is: 720,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,412.60 : 804,618.90 = 480,425.40 : x
  2. Step 2: Convert to fraction form
    536,412.60/804,618.90 = 480,425.40/x
  3. Step 3: Cross multiply
    536,412.60x = 804,618.90 × 480,425.40
  4. Step 4: Simplify right side
    536,412.60x = 386,559,356,880.06
  5. Step 5: Solve for x
    x = 386,559,356,880.06/536,412.60
  6. Step 6: Final answer
    x = 720,638.10

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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.