Home / 922,723.60-1,383,669.04-389,970.40

Finding the Fourth Proportional to 922,723.60, 1,383,669.04 and 389,970.40

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Solution

The fourth proportional to 922,723.60, 1,383,669.04 and 389,970.40 is: 584,779.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,723.60 : 1,383,669.04 = 389,970.40 : x
  2. Step 2: Convert to fraction form
    922,723.60/1,383,669.04 = 389,970.40/x
  3. Step 3: Cross multiply
    922,723.60x = 1,383,669.04 × 389,970.40
  4. Step 4: Simplify right side
    922,723.60x = 539,589,968,996.42
  5. Step 5: Solve for x
    x = 539,589,968,996.42/922,723.60
  6. Step 6: Final answer
    x = 584,779.63

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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.