Home / 1,316,190.60-1,970,349.30-783,437.40

Finding the Fourth Proportional to 1,316,190.60, 1,970,349.30 and 783,437.40

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Solution

The fourth proportional to 1,316,190.60, 1,970,349.30 and 783,437.40 is: 1,172,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,190.60 : 1,970,349.30 = 783,437.40 : x
  2. Step 2: Convert to fraction form
    1,316,190.60/1,970,349.30 = 783,437.40/x
  3. Step 3: Cross multiply
    1,316,190.60x = 1,970,349.30 × 783,437.40
  4. Step 4: Simplify right side
    1,316,190.60x = 1,543,645,332,683.82
  5. Step 5: Solve for x
    x = 1,543,645,332,683.82/1,316,190.60
  6. Step 6: Final answer
    x = 1,172,812.91

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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.