Home / 1,128,637.85-1,557,565.16-619,358.45

Finding the Fourth Proportional to 1,128,637.85, 1,557,565.16 and 619,358.45

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Solution

The fourth proportional to 1,128,637.85, 1,557,565.16 and 619,358.45 is: 854,739.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,637.85 : 1,557,565.16 = 619,358.45 : x
  2. Step 2: Convert to fraction form
    1,128,637.85/1,557,565.16 = 619,358.45/x
  3. Step 3: Cross multiply
    1,128,637.85x = 1,557,565.16 × 619,358.45
  4. Step 4: Simplify right side
    1,128,637.85x = 964,691,132,386.98
  5. Step 5: Solve for x
    x = 964,691,132,386.98/1,128,637.85
  6. Step 6: Final answer
    x = 854,739.31

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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.