Home / 755,324.71-1,042,113.32-428,583.67

Finding the Fourth Proportional to 755,324.71, 1,042,113.32 and 428,583.67

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Solution

The fourth proportional to 755,324.71, 1,042,113.32 and 428,583.67 is: 591,312.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,324.71 : 1,042,113.32 = 428,583.67 : x
  2. Step 2: Convert to fraction form
    755,324.71/1,042,113.32 = 428,583.67/x
  3. Step 3: Cross multiply
    755,324.71x = 1,042,113.32 × 428,583.67
  4. Step 4: Simplify right side
    755,324.71x = 446,632,751,241.48
  5. Step 5: Solve for x
    x = 446,632,751,241.48/755,324.71
  6. Step 6: Final answer
    x = 591,312.25

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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.