Home / 1,127,210.94-1,555,658.73-643,848.30

Finding the Fourth Proportional to 1,127,210.94, 1,555,658.73 and 643,848.30

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Solution

The fourth proportional to 1,127,210.94, 1,555,658.73 and 643,848.30 is: 888,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,210.94 : 1,555,658.73 = 643,848.30 : x
  2. Step 2: Convert to fraction form
    1,127,210.94/1,555,658.73 = 643,848.30/x
  3. Step 3: Cross multiply
    1,127,210.94x = 1,555,658.73 × 643,848.30
  4. Step 4: Simplify right side
    1,127,210.94x = 1,001,608,228,690.66
  5. Step 5: Solve for x
    x = 1,001,608,228,690.66/1,127,210.94
  6. Step 6: Final answer
    x = 888,572.13

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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.