Home / 790,821.10-1,185,986.28-285,316.34

Finding the Fourth Proportional to 790,821.10, 1,185,986.28 and 285,316.34

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Solution

The fourth proportional to 790,821.10, 1,185,986.28 and 285,316.34 is: 427,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,821.10 : 1,185,986.28 = 285,316.34 : x
  2. Step 2: Convert to fraction form
    790,821.10/1,185,986.28 = 285,316.34/x
  3. Step 3: Cross multiply
    790,821.10x = 1,185,986.28 × 285,316.34
  4. Step 4: Simplify right side
    790,821.10x = 338,381,264,699.82
  5. Step 5: Solve for x
    x = 338,381,264,699.82/790,821.10
  6. Step 6: Final answer
    x = 427,885.99

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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.