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Finding the Fourth Proportional to 453,359.60, 680,039.40 and 272,956.40

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Solution

The fourth proportional to 453,359.60, 680,039.40 and 272,956.40 is: 409,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,359.60 : 680,039.40 = 272,956.40 : x
  2. Step 2: Convert to fraction form
    453,359.60/680,039.40 = 272,956.40/x
  3. Step 3: Cross multiply
    453,359.60x = 680,039.40 × 272,956.40
  4. Step 4: Simplify right side
    453,359.60x = 185,621,106,482.16
  5. Step 5: Solve for x
    x = 185,621,106,482.16/453,359.60
  6. Step 6: Final answer
    x = 409,434.60

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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.