Home / 1,385,715.61-1,912,267.36-773,861.89

Finding the Fourth Proportional to 1,385,715.61, 1,912,267.36 and 773,861.89

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Solution

The fourth proportional to 1,385,715.61, 1,912,267.36 and 773,861.89 is: 1,067,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,715.61 : 1,912,267.36 = 773,861.89 : x
  2. Step 2: Convert to fraction form
    1,385,715.61/1,912,267.36 = 773,861.89/x
  3. Step 3: Cross multiply
    1,385,715.61x = 1,912,267.36 × 773,861.89
  4. Step 4: Simplify right side
    1,385,715.61x = 1,479,830,829,525.60
  5. Step 5: Solve for x
    x = 1,479,830,829,525.60/1,385,715.61
  6. Step 6: Final answer
    x = 1,067,918.14

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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.