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Finding the Fourth Proportional to 490,848.20, 736,272.30 and 435,735.80

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Solution

The fourth proportional to 490,848.20, 736,272.30 and 435,735.80 is: 653,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,848.20 : 736,272.30 = 435,735.80 : x
  2. Step 2: Convert to fraction form
    490,848.20/736,272.30 = 435,735.80/x
  3. Step 3: Cross multiply
    490,848.20x = 736,272.30 × 435,735.80
  4. Step 4: Simplify right side
    490,848.20x = 320,820,199,658.34
  5. Step 5: Solve for x
    x = 320,820,199,658.34/490,848.20
  6. Step 6: Final answer
    x = 653,603.70

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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.