Home / 385,365.50-577,300.49-283,979.61

Finding the Fourth Proportional to 385,365.50, 577,300.49 and 283,979.61

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Solution

The fourth proportional to 385,365.50, 577,300.49 and 283,979.61 is: 425,418.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,365.50 : 577,300.49 = 283,979.61 : x
  2. Step 2: Convert to fraction form
    385,365.50/577,300.49 = 283,979.61/x
  3. Step 3: Cross multiply
    385,365.50x = 577,300.49 × 283,979.61
  4. Step 4: Simplify right side
    385,365.50x = 163,941,566,583.11
  5. Step 5: Solve for x
    x = 163,941,566,583.11/385,365.50
  6. Step 6: Final answer
    x = 425,418.39

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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.