Home / 922,398.24-1,383,740.16-389,921.28

Finding the Fourth Proportional to 922,398.24, 1,383,740.16 and 389,921.28

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Solution

The fourth proportional to 922,398.24, 1,383,740.16 and 389,921.28 is: 584,942.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,398.24 : 1,383,740.16 = 389,921.28 : x
  2. Step 2: Convert to fraction form
    922,398.24/1,383,740.16 = 389,921.28/x
  3. Step 3: Cross multiply
    922,398.24x = 1,383,740.16 × 389,921.28
  4. Step 4: Simplify right side
    922,398.24x = 539,549,734,374.61
  5. Step 5: Solve for x
    x = 539,549,734,374.61/922,398.24
  6. Step 6: Final answer
    x = 584,942.29

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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.