Home / 1,173,062.40-1,618,828.80-636,518.40

Finding the Fourth Proportional to 1,173,062.40, 1,618,828.80 and 636,518.40

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Solution

The fourth proportional to 1,173,062.40, 1,618,828.80 and 636,518.40 is: 878,396.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,062.40 : 1,618,828.80 = 636,518.40 : x
  2. Step 2: Convert to fraction form
    1,173,062.40/1,618,828.80 = 636,518.40/x
  3. Step 3: Cross multiply
    1,173,062.40x = 1,618,828.80 × 636,518.40
  4. Step 4: Simplify right side
    1,173,062.40x = 1,030,414,317,649.92
  5. Step 5: Solve for x
    x = 1,030,414,317,649.92/1,173,062.40
  6. Step 6: Final answer
    x = 878,396.85

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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.