Home / 1,405,123.80-1,938,594.90-914,869.44

Finding the Fourth Proportional to 1,405,123.80, 1,938,594.90 and 914,869.44

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Solution

The fourth proportional to 1,405,123.80, 1,938,594.90 and 914,869.44 is: 1,262,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,123.80 : 1,938,594.90 = 914,869.44 : x
  2. Step 2: Convert to fraction form
    1,405,123.80/1,938,594.90 = 914,869.44/x
  3. Step 3: Cross multiply
    1,405,123.80x = 1,938,594.90 × 914,869.44
  4. Step 4: Simplify right side
    1,405,123.80x = 1,773,561,230,549.86
  5. Step 5: Solve for x
    x = 1,773,561,230,549.86/1,405,123.80
  6. Step 6: Final answer
    x = 1,262,209.94

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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.