Home / 1,912,630.72-2,639,430.39-1,053,188.93

Finding the Fourth Proportional to 1,912,630.72, 2,639,430.39 and 1,053,188.93

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Solution

The fourth proportional to 1,912,630.72, 2,639,430.39 and 1,053,188.93 is: 1,453,400.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,630.72 : 2,639,430.39 = 1,053,188.93 : x
  2. Step 2: Convert to fraction form
    1,912,630.72/2,639,430.39 = 1,053,188.93/x
  3. Step 3: Cross multiply
    1,912,630.72x = 2,639,430.39 × 1,053,188.93
  4. Step 4: Simplify right side
    1,912,630.72x = 2,779,818,855,056.43
  5. Step 5: Solve for x
    x = 2,779,818,855,056.43/1,912,630.72
  6. Step 6: Final answer
    x = 1,453,400.71

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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.