Home / 687,046.92-1,030,072.14-461,848.74

Finding the Fourth Proportional to 687,046.92, 1,030,072.14 and 461,848.74

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Solution

The fourth proportional to 687,046.92, 1,030,072.14 and 461,848.74 is: 692,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,046.92 : 1,030,072.14 = 461,848.74 : x
  2. Step 2: Convert to fraction form
    687,046.92/1,030,072.14 = 461,848.74/x
  3. Step 3: Cross multiply
    687,046.92x = 1,030,072.14 × 461,848.74
  4. Step 4: Simplify right side
    687,046.92x = 475,737,519,968.10
  5. Step 5: Solve for x
    x = 475,737,519,968.10/687,046.92
  6. Step 6: Final answer
    x = 692,438.18

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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.