Home / 1,211,061.80-1,815,296.70-411,602.60

Finding the Fourth Proportional to 1,211,061.80, 1,815,296.70 and 411,602.60

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Solution

The fourth proportional to 1,211,061.80, 1,815,296.70 and 411,602.60 is: 616,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,061.80 : 1,815,296.70 = 411,602.60 : x
  2. Step 2: Convert to fraction form
    1,211,061.80/1,815,296.70 = 411,602.60/x
  3. Step 3: Cross multiply
    1,211,061.80x = 1,815,296.70 × 411,602.60
  4. Step 4: Simplify right side
    1,211,061.80x = 747,180,841,491.42
  5. Step 5: Solve for x
    x = 747,180,841,491.42/1,211,061.80
  6. Step 6: Final answer
    x = 616,963.43

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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.