Home / 988,627.86-1,481,944.68-389,357.46

Finding the Fourth Proportional to 988,627.86, 1,481,944.68 and 389,357.46

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Solution

The fourth proportional to 988,627.86, 1,481,944.68 and 389,357.46 is: 583,643.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,627.86 : 1,481,944.68 = 389,357.46 : x
  2. Step 2: Convert to fraction form
    988,627.86/1,481,944.68 = 389,357.46/x
  3. Step 3: Cross multiply
    988,627.86x = 1,481,944.68 × 389,357.46
  4. Step 4: Simplify right side
    988,627.86x = 577,006,216,465.31
  5. Step 5: Solve for x
    x = 577,006,216,465.31/988,627.86
  6. Step 6: Final answer
    x = 583,643.49

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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.