Home / 913,930.80-1,261,136.93-506,017.73

Finding the Fourth Proportional to 913,930.80, 1,261,136.93 and 506,017.73

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Solution

The fourth proportional to 913,930.80, 1,261,136.93 and 506,017.73 is: 698,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,930.80 : 1,261,136.93 = 506,017.73 : x
  2. Step 2: Convert to fraction form
    913,930.80/1,261,136.93 = 506,017.73/x
  3. Step 3: Cross multiply
    913,930.80x = 1,261,136.93 × 506,017.73
  4. Step 4: Simplify right side
    913,930.80x = 638,157,647,160.52
  5. Step 5: Solve for x
    x = 638,157,647,160.52/913,930.80
  6. Step 6: Final answer
    x = 698,255.98

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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.