Home / 450,649.18-621,964.17-257,055.94

Finding the Fourth Proportional to 450,649.18, 621,964.17 and 257,055.94

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Solution

The fourth proportional to 450,649.18, 621,964.17 and 257,055.94 is: 354,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,649.18 : 621,964.17 = 257,055.94 : x
  2. Step 2: Convert to fraction form
    450,649.18/621,964.17 = 257,055.94/x
  3. Step 3: Cross multiply
    450,649.18x = 621,964.17 × 257,055.94
  4. Step 4: Simplify right side
    450,649.18x = 159,879,584,365.67
  5. Step 5: Solve for x
    x = 159,879,584,365.67/450,649.18
  6. Step 6: Final answer
    x = 354,776.16

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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.