Home / 897,431.91-1,345,392.79-417,415.78

Finding the Fourth Proportional to 897,431.91, 1,345,392.79 and 417,415.78

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Solution

The fourth proportional to 897,431.91, 1,345,392.79 and 417,415.78 is: 625,772.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,431.91 : 1,345,392.79 = 417,415.78 : x
  2. Step 2: Convert to fraction form
    897,431.91/1,345,392.79 = 417,415.78/x
  3. Step 3: Cross multiply
    897,431.91x = 1,345,392.79 × 417,415.78
  4. Step 4: Simplify right side
    897,431.91x = 561,588,181,482.43
  5. Step 5: Solve for x
    x = 561,588,181,482.43/897,431.91
  6. Step 6: Final answer
    x = 625,772.47

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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.