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Finding the Fourth Proportional to 437,354.60, 653,635.62 and 319,274.60

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Solution

The fourth proportional to 437,354.60, 653,635.62 and 319,274.60 is: 477,162.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,354.60 : 653,635.62 = 319,274.60 : x
  2. Step 2: Convert to fraction form
    437,354.60/653,635.62 = 319,274.60/x
  3. Step 3: Cross multiply
    437,354.60x = 653,635.62 × 319,274.60
  4. Step 4: Simplify right side
    437,354.60x = 208,689,247,853.07
  5. Step 5: Solve for x
    x = 208,689,247,853.07/437,354.60
  6. Step 6: Final answer
    x = 477,162.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.