Home / 755,820-1,043,031.60-416,288.25

Finding the Fourth Proportional to 755,820, 1,043,031.60 and 416,288.25

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Solution

The fourth proportional to 755,820, 1,043,031.60 and 416,288.25 is: 574,477.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,820 : 1,043,031.60 = 416,288.25 : x
  2. Step 2: Convert to fraction form
    755,820/1,043,031.60 = 416,288.25/x
  3. Step 3: Cross multiply
    755,820x = 1,043,031.60 × 416,288.25
  4. Step 4: Simplify right side
    755,820x = 434,201,799,458.70
  5. Step 5: Solve for x
    x = 434,201,799,458.70/755,820
  6. Step 6: Final answer
    x = 574,477.79

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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.