Home / 1,128,028.28-1,556,670.58-618,727

Finding the Fourth Proportional to 1,128,028.28, 1,556,670.58 and 618,727

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Solution

The fourth proportional to 1,128,028.28, 1,556,670.58 and 618,727 is: 853,838.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,028.28 : 1,556,670.58 = 618,727 : x
  2. Step 2: Convert to fraction form
    1,128,028.28/1,556,670.58 = 618,727/x
  3. Step 3: Cross multiply
    1,128,028.28x = 1,556,670.58 × 618,727
  4. Step 4: Simplify right side
    1,128,028.28x = 963,154,117,951.66
  5. Step 5: Solve for x
    x = 963,154,117,951.66/1,128,028.28
  6. Step 6: Final answer
    x = 853,838.63

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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.