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Finding the Fourth Proportional to 531,339.60, 797,009.40 and 478,851.60

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Solution

The fourth proportional to 531,339.60, 797,009.40 and 478,851.60 is: 718,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,339.60 : 797,009.40 = 478,851.60 : x
  2. Step 2: Convert to fraction form
    531,339.60/797,009.40 = 478,851.60/x
  3. Step 3: Cross multiply
    531,339.60x = 797,009.40 × 478,851.60
  4. Step 4: Simplify right side
    531,339.60x = 381,649,226,405.04
  5. Step 5: Solve for x
    x = 381,649,226,405.04/531,339.60
  6. Step 6: Final answer
    x = 718,277.40

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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.