Home / 922,316.55-1,383,142.69-389,878.98

Finding the Fourth Proportional to 922,316.55, 1,383,142.69 and 389,878.98

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Solution

The fourth proportional to 922,316.55, 1,383,142.69 and 389,878.98 is: 584,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,316.55 : 1,383,142.69 = 389,878.98 : x
  2. Step 2: Convert to fraction form
    922,316.55/1,383,142.69 = 389,878.98/x
  3. Step 3: Cross multiply
    922,316.55x = 1,383,142.69 × 389,878.98
  4. Step 4: Simplify right side
    922,316.55x = 539,258,261,171.66
  5. Step 5: Solve for x
    x = 539,258,261,171.66/922,316.55
  6. Step 6: Final answer
    x = 584,678.07

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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.