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Finding the Fourth Proportional to 531,201.60, 796,802.40 and 478,713.60

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Solution

The fourth proportional to 531,201.60, 796,802.40 and 478,713.60 is: 718,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,201.60 : 796,802.40 = 478,713.60 : x
  2. Step 2: Convert to fraction form
    531,201.60/796,802.40 = 478,713.60/x
  3. Step 3: Cross multiply
    531,201.60x = 796,802.40 × 478,713.60
  4. Step 4: Simplify right side
    531,201.60x = 381,440,145,392.64
  5. Step 5: Solve for x
    x = 381,440,145,392.64/531,201.60
  6. Step 6: Final answer
    x = 718,070.40

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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.