Home / 907,415.88-1,252,190.88-499,509.33

Finding the Fourth Proportional to 907,415.88, 1,252,190.88 and 499,509.33

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Solution

The fourth proportional to 907,415.88, 1,252,190.88 and 499,509.33 is: 689,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,415.88 : 1,252,190.88 = 499,509.33 : x
  2. Step 2: Convert to fraction form
    907,415.88/1,252,190.88 = 499,509.33/x
  3. Step 3: Cross multiply
    907,415.88x = 1,252,190.88 × 499,509.33
  4. Step 4: Simplify right side
    907,415.88x = 625,481,027,500.91
  5. Step 5: Solve for x
    x = 625,481,027,500.91/907,415.88
  6. Step 6: Final answer
    x = 689,299.19

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Double scale
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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.