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Finding the Fourth Proportional to 490,705.40, 736,276.80 and 224,328.80

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Solution

The fourth proportional to 490,705.40, 736,276.80 and 224,328.80 is: 336,593.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,705.40 : 736,276.80 = 224,328.80 : x
  2. Step 2: Convert to fraction form
    490,705.40/736,276.80 = 224,328.80/x
  3. Step 3: Cross multiply
    490,705.40x = 736,276.80 × 224,328.80
  4. Step 4: Simplify right side
    490,705.40x = 165,168,091,011.84
  5. Step 5: Solve for x
    x = 165,168,091,011.84/490,705.40
  6. Step 6: Final answer
    x = 336,593.18

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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.