Home / 628,756.78-867,549.81-374,058.22

Finding the Fourth Proportional to 628,756.78, 867,549.81 and 374,058.22

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Solution

The fourth proportional to 628,756.78, 867,549.81 and 374,058.22 is: 516,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,756.78 : 867,549.81 = 374,058.22 : x
  2. Step 2: Convert to fraction form
    628,756.78/867,549.81 = 374,058.22/x
  3. Step 3: Cross multiply
    628,756.78x = 867,549.81 × 374,058.22
  4. Step 4: Simplify right side
    628,756.78x = 324,514,137,689.94
  5. Step 5: Solve for x
    x = 324,514,137,689.94/628,756.78
  6. Step 6: Final answer
    x = 516,120.30

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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.