Home / 918,137-1,377,284.88-253,289

Finding the Fourth Proportional to 918,137, 1,377,284.88 and 253,289

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Solution

The fourth proportional to 918,137, 1,377,284.88 and 253,289 is: 379,955.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,137 : 1,377,284.88 = 253,289 : x
  2. Step 2: Convert to fraction form
    918,137/1,377,284.88 = 253,289/x
  3. Step 3: Cross multiply
    918,137x = 1,377,284.88 × 253,289
  4. Step 4: Simplify right side
    918,137x = 348,851,109,970.32
  5. Step 5: Solve for x
    x = 348,851,109,970.32/918,137
  6. Step 6: Final answer
    x = 379,955.40

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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.