Home / 1,137,774.42-1,570,123.91-628,476.80

Finding the Fourth Proportional to 1,137,774.42, 1,570,123.91 and 628,476.80

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Solution

The fourth proportional to 1,137,774.42, 1,570,123.91 and 628,476.80 is: 867,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,774.42 : 1,570,123.91 = 628,476.80 : x
  2. Step 2: Convert to fraction form
    1,137,774.42/1,570,123.91 = 628,476.80/x
  3. Step 3: Cross multiply
    1,137,774.42x = 1,570,123.91 × 628,476.80
  4. Step 4: Simplify right side
    1,137,774.42x = 986,786,444,280.86
  5. Step 5: Solve for x
    x = 986,786,444,280.86/1,137,774.42
  6. Step 6: Final answer
    x = 867,295.33

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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.