Home / 752,420.86-1,038,370.72-412,901.26

Finding the Fourth Proportional to 752,420.86, 1,038,370.72 and 412,901.26

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Solution

The fourth proportional to 752,420.86, 1,038,370.72 and 412,901.26 is: 569,820.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,420.86 : 1,038,370.72 = 412,901.26 : x
  2. Step 2: Convert to fraction form
    752,420.86/1,038,370.72 = 412,901.26/x
  3. Step 3: Cross multiply
    752,420.86x = 1,038,370.72 × 412,901.26
  4. Step 4: Simplify right side
    752,420.86x = 428,744,573,443.25
  5. Step 5: Solve for x
    x = 428,744,573,443.25/752,420.86
  6. Step 6: Final answer
    x = 569,820.16

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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.