Home / 659,415.90-988,985.44-185,990.54

Finding the Fourth Proportional to 659,415.90, 988,985.44 and 185,990.54

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Solution

The fourth proportional to 659,415.90, 988,985.44 and 185,990.54 is: 278,946.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,415.90 : 988,985.44 = 185,990.54 : x
  2. Step 2: Convert to fraction form
    659,415.90/988,985.44 = 185,990.54/x
  3. Step 3: Cross multiply
    659,415.90x = 988,985.44 × 185,990.54
  4. Step 4: Simplify right side
    659,415.90x = 183,941,938,045.23
  5. Step 5: Solve for x
    x = 183,941,938,045.23/659,415.90
  6. Step 6: Final answer
    x = 278,946.77

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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.