Home / 450,648.18-621,962.79-257,054.94

Finding the Fourth Proportional to 450,648.18, 621,962.79 and 257,054.94

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Solution

The fourth proportional to 450,648.18, 621,962.79 and 257,054.94 is: 354,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,648.18 : 621,962.79 = 257,054.94 : x
  2. Step 2: Convert to fraction form
    450,648.18/621,962.79 = 257,054.94/x
  3. Step 3: Cross multiply
    450,648.18x = 621,962.79 × 257,054.94
  4. Step 4: Simplify right side
    450,648.18x = 159,878,607,665.68
  5. Step 5: Solve for x
    x = 159,878,607,665.68/450,648.18
  6. Step 6: Final answer
    x = 354,774.78

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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.