Home / 643,060.90-887,360.10-371,216.37

Finding the Fourth Proportional to 643,060.90, 887,360.10 and 371,216.37

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Solution

The fourth proportional to 643,060.90, 887,360.10 and 371,216.37 is: 512,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,060.90 : 887,360.10 = 371,216.37 : x
  2. Step 2: Convert to fraction form
    643,060.90/887,360.10 = 371,216.37/x
  3. Step 3: Cross multiply
    643,060.90x = 887,360.10 × 371,216.37
  4. Step 4: Simplify right side
    643,060.90x = 329,402,591,130.36
  5. Step 5: Solve for x
    x = 329,402,591,130.36/643,060.90
  6. Step 6: Final answer
    x = 512,241.68

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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.