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Finding the Fourth Proportional to 536,415.60, 804,623.40 and 480,428.40

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Solution

The fourth proportional to 536,415.60, 804,623.40 and 480,428.40 is: 720,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,415.60 : 804,623.40 = 480,428.40 : x
  2. Step 2: Convert to fraction form
    536,415.60/804,623.40 = 480,428.40/x
  3. Step 3: Cross multiply
    536,415.60x = 804,623.40 × 480,428.40
  4. Step 4: Simplify right side
    536,415.60x = 386,563,932,664.56
  5. Step 5: Solve for x
    x = 386,563,932,664.56/536,415.60
  6. Step 6: Final answer
    x = 720,642.60

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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.