Home / 1,428,461.60-1,971,301.16-783,941.80

Finding the Fourth Proportional to 1,428,461.60, 1,971,301.16 and 783,941.80

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Solution

The fourth proportional to 1,428,461.60, 1,971,301.16 and 783,941.80 is: 1,081,852.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,461.60 : 1,971,301.16 = 783,941.80 : x
  2. Step 2: Convert to fraction form
    1,428,461.60/1,971,301.16 = 783,941.80/x
  3. Step 3: Cross multiply
    1,428,461.60x = 1,971,301.16 × 783,941.80
  4. Step 4: Simplify right side
    1,428,461.60x = 1,545,385,379,712.49
  5. Step 5: Solve for x
    x = 1,545,385,379,712.49/1,428,461.60
  6. Step 6: Final answer
    x = 1,081,852.94

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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.