Home / 1,138,048.59-1,570,488.68-621,791.45

Finding the Fourth Proportional to 1,138,048.59, 1,570,488.68 and 621,791.45

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Solution

The fourth proportional to 1,138,048.59, 1,570,488.68 and 621,791.45 is: 858,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,048.59 : 1,570,488.68 = 621,791.45 : x
  2. Step 2: Convert to fraction form
    1,138,048.59/1,570,488.68 = 621,791.45/x
  3. Step 3: Cross multiply
    1,138,048.59x = 1,570,488.68 × 621,791.45
  4. Step 4: Simplify right side
    1,138,048.59x = 976,516,433,137.15
  5. Step 5: Solve for x
    x = 976,516,433,137.15/1,138,048.59
  6. Step 6: Final answer
    x = 858,062.16

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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.