Home / 1,439,818.43-1,986,937.61-786,444.86

Finding the Fourth Proportional to 1,439,818.43, 1,986,937.61 and 786,444.86

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Solution

The fourth proportional to 1,439,818.43, 1,986,937.61 and 786,444.86 is: 1,085,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,818.43 : 1,986,937.61 = 786,444.86 : x
  2. Step 2: Convert to fraction form
    1,439,818.43/1,986,937.61 = 786,444.86/x
  3. Step 3: Cross multiply
    1,439,818.43x = 1,986,937.61 × 786,444.86
  4. Step 4: Simplify right side
    1,439,818.43x = 1,562,616,872,491.30
  5. Step 5: Solve for x
    x = 1,562,616,872,491.30/1,439,818.43
  6. Step 6: Final answer
    x = 1,085,287.45

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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.