Home / 385,377.38-577,317.96-283,991.40

Finding the Fourth Proportional to 385,377.38, 577,317.96 and 283,991.40

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Solution

The fourth proportional to 385,377.38, 577,317.96 and 283,991.40 is: 425,435.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,377.38 : 577,317.96 = 283,991.40 : x
  2. Step 2: Convert to fraction form
    385,377.38/577,317.96 = 283,991.40/x
  3. Step 3: Cross multiply
    385,377.38x = 577,317.96 × 283,991.40
  4. Step 4: Simplify right side
    385,377.38x = 163,953,335,705.54
  5. Step 5: Solve for x
    x = 163,953,335,705.54/385,377.38
  6. Step 6: Final answer
    x = 425,435.80

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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.