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Finding the Fourth Proportional to 555,088.34, 766,028.40 and 325,649.57

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Solution

The fourth proportional to 555,088.34, 766,028.40 and 325,649.57 is: 449,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,088.34 : 766,028.40 = 325,649.57 : x
  2. Step 2: Convert to fraction form
    555,088.34/766,028.40 = 325,649.57/x
  3. Step 3: Cross multiply
    555,088.34x = 766,028.40 × 325,649.57
  4. Step 4: Simplify right side
    555,088.34x = 249,456,819,067.79
  5. Step 5: Solve for x
    x = 249,456,819,067.79/555,088.34
  6. Step 6: Final answer
    x = 449,400.21

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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.