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Finding the Fourth Proportional to 525,536.64, 725,332.32 and 310,659.84

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Solution

The fourth proportional to 525,536.64, 725,332.32 and 310,659.84 is: 428,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,536.64 : 725,332.32 = 310,659.84 : x
  2. Step 2: Convert to fraction form
    525,536.64/725,332.32 = 310,659.84/x
  3. Step 3: Cross multiply
    525,536.64x = 725,332.32 × 310,659.84
  4. Step 4: Simplify right side
    525,536.64x = 225,331,622,478.03
  5. Step 5: Solve for x
    x = 225,331,622,478.03/525,536.64
  6. Step 6: Final answer
    x = 428,764.82

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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.