Home / 897,435.90-1,345,398.78-417,419.78

Finding the Fourth Proportional to 897,435.90, 1,345,398.78 and 417,419.78

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Solution

The fourth proportional to 897,435.90, 1,345,398.78 and 417,419.78 is: 625,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,435.90 : 1,345,398.78 = 417,419.78 : x
  2. Step 2: Convert to fraction form
    897,435.90/1,345,398.78 = 417,419.78/x
  3. Step 3: Cross multiply
    897,435.90x = 1,345,398.78 × 417,419.78
  4. Step 4: Simplify right side
    897,435.90x = 561,596,062,759.87
  5. Step 5: Solve for x
    x = 561,596,062,759.87/897,435.90
  6. Step 6: Final answer
    x = 625,778.47

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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.