Home / 642,968.08-887,252.52-371,047.28

Finding the Fourth Proportional to 642,968.08, 887,252.52 and 371,047.28

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Solution

The fourth proportional to 642,968.08, 887,252.52 and 371,047.28 is: 512,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,968.08 : 887,252.52 = 371,047.28 : x
  2. Step 2: Convert to fraction form
    642,968.08/887,252.52 = 371,047.28/x
  3. Step 3: Cross multiply
    642,968.08x = 887,252.52 × 371,047.28
  4. Step 4: Simplify right side
    642,968.08x = 329,212,634,219.15
  5. Step 5: Solve for x
    x = 329,212,634,219.15/642,968.08
  6. Step 6: Final answer
    x = 512,020.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.