Home / 385,371.12-577,308.60-283,985.13

Finding the Fourth Proportional to 385,371.12, 577,308.60 and 283,985.13

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Solution

The fourth proportional to 385,371.12, 577,308.60 and 283,985.13 is: 425,426.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,371.12 : 577,308.60 = 283,985.13 : x
  2. Step 2: Convert to fraction form
    385,371.12/577,308.60 = 283,985.13/x
  3. Step 3: Cross multiply
    385,371.12x = 577,308.60 × 283,985.13
  4. Step 4: Simplify right side
    385,371.12x = 163,947,056,401.19
  5. Step 5: Solve for x
    x = 163,947,056,401.19/385,371.12
  6. Step 6: Final answer
    x = 425,426.42

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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.