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Finding the Fourth Proportional to 490,587.20, 735,880.80 and 175,054.40

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Solution

The fourth proportional to 490,587.20, 735,880.80 and 175,054.40 is: 262,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,587.20 : 735,880.80 = 175,054.40 : x
  2. Step 2: Convert to fraction form
    490,587.20/735,880.80 = 175,054.40/x
  3. Step 3: Cross multiply
    490,587.20x = 735,880.80 × 175,054.40
  4. Step 4: Simplify right side
    490,587.20x = 128,819,171,915.52
  5. Step 5: Solve for x
    x = 128,819,171,915.52/490,587.20
  6. Step 6: Final answer
    x = 262,581.60

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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.