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Finding the Fourth Proportional to 531,807.21, 733,904.21 and 290,098.65

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Solution

The fourth proportional to 531,807.21, 733,904.21 and 290,098.65 is: 400,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,807.21 : 733,904.21 = 290,098.65 : x
  2. Step 2: Convert to fraction form
    531,807.21/733,904.21 = 290,098.65/x
  3. Step 3: Cross multiply
    531,807.21x = 733,904.21 × 290,098.65
  4. Step 4: Simplify right side
    531,807.21x = 212,904,620,550.32
  5. Step 5: Solve for x
    x = 212,904,620,550.32/531,807.21
  6. Step 6: Final answer
    x = 400,341.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.