Home / 1,428,457.59-1,971,295.65-783,937.80

Finding the Fourth Proportional to 1,428,457.59, 1,971,295.65 and 783,937.80

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Solution

The fourth proportional to 1,428,457.59, 1,971,295.65 and 783,937.80 is: 1,081,847.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,457.59 : 1,971,295.65 = 783,937.80 : x
  2. Step 2: Convert to fraction form
    1,428,457.59/1,971,295.65 = 783,937.80/x
  3. Step 3: Cross multiply
    1,428,457.59x = 1,971,295.65 × 783,937.80
  4. Step 4: Simplify right side
    1,428,457.59x = 1,545,373,175,010.57
  5. Step 5: Solve for x
    x = 1,545,373,175,010.57/1,428,457.59
  6. Step 6: Final answer
    x = 1,081,847.43

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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.