Home / 765,947.08-1,056,986.32-426,415.36

Finding the Fourth Proportional to 765,947.08, 1,056,986.32 and 426,415.36

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Solution

The fourth proportional to 765,947.08, 1,056,986.32 and 426,415.36 is: 588,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,947.08 : 1,056,986.32 = 426,415.36 : x
  2. Step 2: Convert to fraction form
    765,947.08/1,056,986.32 = 426,415.36/x
  3. Step 3: Cross multiply
    765,947.08x = 1,056,986.32 × 426,415.36
  4. Step 4: Simplify right side
    765,947.08x = 450,715,202,157.88
  5. Step 5: Solve for x
    x = 450,715,202,157.88/765,947.08
  6. Step 6: Final answer
    x = 588,441.70

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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.