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Finding the Fourth Proportional to 490,395.16, 736,700.08 and 290,846.46

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Solution

The fourth proportional to 490,395.16, 736,700.08 and 290,846.46 is: 436,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,395.16 : 736,700.08 = 290,846.46 : x
  2. Step 2: Convert to fraction form
    490,395.16/736,700.08 = 290,846.46/x
  3. Step 3: Cross multiply
    490,395.16x = 736,700.08 × 290,846.46
  4. Step 4: Simplify right side
    490,395.16x = 214,266,610,349.72
  5. Step 5: Solve for x
    x = 214,266,610,349.72/490,395.16
  6. Step 6: Final answer
    x = 436,926.44

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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.