Home / 1,326,116.62-1,989,188.81-1,061,558.86

Finding the Fourth Proportional to 1,326,116.62, 1,989,188.81 and 1,061,558.86

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Solution

The fourth proportional to 1,326,116.62, 1,989,188.81 and 1,061,558.86 is: 1,592,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,116.62 : 1,989,188.81 = 1,061,558.86 : x
  2. Step 2: Convert to fraction form
    1,326,116.62/1,989,188.81 = 1,061,558.86/x
  3. Step 3: Cross multiply
    1,326,116.62x = 1,989,188.81 × 1,061,558.86
  4. Step 4: Simplify right side
    1,326,116.62x = 2,111,641,005,468.36
  5. Step 5: Solve for x
    x = 2,111,641,005,468.36/1,326,116.62
  6. Step 6: Final answer
    x = 1,592,349.40

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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.