Home / 687,986.60-1,029,647.10-604,005.80

Finding the Fourth Proportional to 687,986.60, 1,029,647.10 and 604,005.80

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Solution

The fourth proportional to 687,986.60, 1,029,647.10 and 604,005.80 is: 903,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,986.60 : 1,029,647.10 = 604,005.80 : x
  2. Step 2: Convert to fraction form
    687,986.60/1,029,647.10 = 604,005.80/x
  3. Step 3: Cross multiply
    687,986.60x = 1,029,647.10 × 604,005.80
  4. Step 4: Simplify right side
    687,986.60x = 621,912,820,353.18
  5. Step 5: Solve for x
    x = 621,912,820,353.18/687,986.60
  6. Step 6: Final answer
    x = 903,960.66

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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.