Home / 385,620.39-577,677.27-265,656.15

Finding the Fourth Proportional to 385,620.39, 577,677.27 and 265,656.15

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Solution

The fourth proportional to 385,620.39, 577,677.27 and 265,656.15 is: 397,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,620.39 : 577,677.27 = 265,656.15 : x
  2. Step 2: Convert to fraction form
    385,620.39/577,677.27 = 265,656.15/x
  3. Step 3: Cross multiply
    385,620.39x = 577,677.27 × 265,656.15
  4. Step 4: Simplify right side
    385,620.39x = 153,463,519,490.71
  5. Step 5: Solve for x
    x = 153,463,519,490.71/385,620.39
  6. Step 6: Final answer
    x = 397,965.26

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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.