Home / 907,209.88-1,359,259.62-640,493.08

Finding the Fourth Proportional to 907,209.88, 1,359,259.62 and 640,493.08

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Solution

The fourth proportional to 907,209.88, 1,359,259.62 and 640,493.08 is: 959,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,209.88 : 1,359,259.62 = 640,493.08 : x
  2. Step 2: Convert to fraction form
    907,209.88/1,359,259.62 = 640,493.08/x
  3. Step 3: Cross multiply
    907,209.88x = 1,359,259.62 × 640,493.08
  4. Step 4: Simplify right side
    907,209.88x = 870,596,380,533.43
  5. Step 5: Solve for x
    x = 870,596,380,533.43/907,209.88
  6. Step 6: Final answer
    x = 959,641.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.