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Finding the Fourth Proportional to 493,880.40, 740,820.60 and 486,007.20

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Solution

The fourth proportional to 493,880.40, 740,820.60 and 486,007.20 is: 729,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,880.40 : 740,820.60 = 486,007.20 : x
  2. Step 2: Convert to fraction form
    493,880.40/740,820.60 = 486,007.20/x
  3. Step 3: Cross multiply
    493,880.40x = 740,820.60 × 486,007.20
  4. Step 4: Simplify right side
    493,880.40x = 360,044,145,508.32
  5. Step 5: Solve for x
    x = 360,044,145,508.32/493,880.40
  6. Step 6: Final answer
    x = 729,010.80

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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.