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Finding the Fourth Proportional to 403,253.60, 604,880.40 and 278,837.60

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Solution

The fourth proportional to 403,253.60, 604,880.40 and 278,837.60 is: 418,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,253.60 : 604,880.40 = 278,837.60 : x
  2. Step 2: Convert to fraction form
    403,253.60/604,880.40 = 278,837.60/x
  3. Step 3: Cross multiply
    403,253.60x = 604,880.40 × 278,837.60
  4. Step 4: Simplify right side
    403,253.60x = 168,663,399,023.04
  5. Step 5: Solve for x
    x = 168,663,399,023.04/403,253.60
  6. Step 6: Final answer
    x = 418,256.40

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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.