Home / 907,634.57-1,252,526.49-499,728.69

Finding the Fourth Proportional to 907,634.57, 1,252,526.49 and 499,728.69

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Solution

The fourth proportional to 907,634.57, 1,252,526.49 and 499,728.69 is: 689,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,634.57 : 1,252,526.49 = 499,728.69 : x
  2. Step 2: Convert to fraction form
    907,634.57/1,252,526.49 = 499,728.69/x
  3. Step 3: Cross multiply
    907,634.57x = 1,252,526.49 × 499,728.69
  4. Step 4: Simplify right side
    907,634.57x = 625,923,422,038.00
  5. Step 5: Solve for x
    x = 625,923,422,038.00/907,634.57
  6. Step 6: Final answer
    x = 689,620.52

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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.