Home / 1,138,048.05-1,570,487.66-621,790.83

Finding the Fourth Proportional to 1,138,048.05, 1,570,487.66 and 621,790.83

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Solution

The fourth proportional to 1,138,048.05, 1,570,487.66 and 621,790.83 is: 858,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,048.05 : 1,570,487.66 = 621,790.83 : x
  2. Step 2: Convert to fraction form
    1,138,048.05/1,570,487.66 = 621,790.83/x
  3. Step 3: Cross multiply
    1,138,048.05x = 1,570,487.66 × 621,790.83
  4. Step 4: Simplify right side
    1,138,048.05x = 976,514,826,587.71
  5. Step 5: Solve for x
    x = 976,514,826,587.71/1,138,048.05
  6. Step 6: Final answer
    x = 858,061.16

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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.