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Finding the Fourth Proportional to 490,000.60, 735,000.90 and 174,813.40

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Solution

The fourth proportional to 490,000.60, 735,000.90 and 174,813.40 is: 262,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,000.60 : 735,000.90 = 174,813.40 : x
  2. Step 2: Convert to fraction form
    490,000.60/735,000.90 = 174,813.40/x
  3. Step 3: Cross multiply
    490,000.60x = 735,000.90 × 174,813.40
  4. Step 4: Simplify right side
    490,000.60x = 128,488,006,332.06
  5. Step 5: Solve for x
    x = 128,488,006,332.06/490,000.60
  6. Step 6: Final answer
    x = 262,220.10

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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.