Home / 385,264.80-577,897.20-259,293.60

Finding the Fourth Proportional to 385,264.80, 577,897.20 and 259,293.60

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Solution

The fourth proportional to 385,264.80, 577,897.20 and 259,293.60 is: 388,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,264.80 : 577,897.20 = 259,293.60 : x
  2. Step 2: Convert to fraction form
    385,264.80/577,897.20 = 259,293.60/x
  3. Step 3: Cross multiply
    385,264.80x = 577,897.20 × 259,293.60
  4. Step 4: Simplify right side
    385,264.80x = 149,845,045,417.92
  5. Step 5: Solve for x
    x = 149,845,045,417.92/385,264.80
  6. Step 6: Final answer
    x = 388,940.40

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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.