Home / 687,930.35-949,311.93-382,026.11

Finding the Fourth Proportional to 687,930.35, 949,311.93 and 382,026.11

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Solution

The fourth proportional to 687,930.35, 949,311.93 and 382,026.11 is: 527,178.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,930.35 : 949,311.93 = 382,026.11 : x
  2. Step 2: Convert to fraction form
    687,930.35/949,311.93 = 382,026.11/x
  3. Step 3: Cross multiply
    687,930.35x = 949,311.93 × 382,026.11
  4. Step 4: Simplify right side
    687,930.35x = 362,661,939,047.93
  5. Step 5: Solve for x
    x = 362,661,939,047.93/687,930.35
  6. Step 6: Final answer
    x = 527,178.28

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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.