Home / 525,720.80-724,739.34-374,555.36

Finding the Fourth Proportional to 525,720.80, 724,739.34 and 374,555.36

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Solution

The fourth proportional to 525,720.80, 724,739.34 and 374,555.36 is: 516,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,720.80 : 724,739.34 = 374,555.36 : x
  2. Step 2: Convert to fraction form
    525,720.80/724,739.34 = 374,555.36/x
  3. Step 3: Cross multiply
    525,720.80x = 724,739.34 × 374,555.36
  4. Step 4: Simplify right side
    525,720.80x = 271,455,004,399.86
  5. Step 5: Solve for x
    x = 271,455,004,399.86/525,720.80
  6. Step 6: Final answer
    x = 516,348.23

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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.