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Finding the Fourth Proportional to 490,073.60, 735,110.40 and 370,323.20

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Solution

The fourth proportional to 490,073.60, 735,110.40 and 370,323.20 is: 555,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,073.60 : 735,110.40 = 370,323.20 : x
  2. Step 2: Convert to fraction form
    490,073.60/735,110.40 = 370,323.20/x
  3. Step 3: Cross multiply
    490,073.60x = 735,110.40 × 370,323.20
  4. Step 4: Simplify right side
    490,073.60x = 272,228,435,681.28
  5. Step 5: Solve for x
    x = 272,228,435,681.28/490,073.60
  6. Step 6: Final answer
    x = 555,484.80

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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.