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Finding the Fourth Proportional to 493,828.20, 740,742.30 and 488,579.40

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Solution

The fourth proportional to 493,828.20, 740,742.30 and 488,579.40 is: 732,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,828.20 : 740,742.30 = 488,579.40 : x
  2. Step 2: Convert to fraction form
    493,828.20/740,742.30 = 488,579.40/x
  3. Step 3: Cross multiply
    493,828.20x = 740,742.30 × 488,579.40
  4. Step 4: Simplify right side
    493,828.20x = 361,911,428,488.62
  5. Step 5: Solve for x
    x = 361,911,428,488.62/493,828.20
  6. Step 6: Final answer
    x = 732,869.10

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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.