Home / 1,555,834.50-2,147,051.61-840,442.50

Finding the Fourth Proportional to 1,555,834.50, 2,147,051.61 and 840,442.50

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Solution

The fourth proportional to 1,555,834.50, 2,147,051.61 and 840,442.50 is: 1,159,810.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,834.50 : 2,147,051.61 = 840,442.50 : x
  2. Step 2: Convert to fraction form
    1,555,834.50/2,147,051.61 = 840,442.50/x
  3. Step 3: Cross multiply
    1,555,834.50x = 2,147,051.61 × 840,442.50
  4. Step 4: Simplify right side
    1,555,834.50x = 1,804,473,422,737.42
  5. Step 5: Solve for x
    x = 1,804,473,422,737.42/1,555,834.50
  6. Step 6: Final answer
    x = 1,159,810.65

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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.