Home / 1,039,606.40-1,557,802.23-811,360.83

Finding the Fourth Proportional to 1,039,606.40, 1,557,802.23 and 811,360.83

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Solution

The fourth proportional to 1,039,606.40, 1,557,802.23 and 811,360.83 is: 1,215,786.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,606.40 : 1,557,802.23 = 811,360.83 : x
  2. Step 2: Convert to fraction form
    1,039,606.40/1,557,802.23 = 811,360.83/x
  3. Step 3: Cross multiply
    1,039,606.40x = 1,557,802.23 × 811,360.83
  4. Step 4: Simplify right side
    1,039,606.40x = 1,263,939,710,308.65
  5. Step 5: Solve for x
    x = 1,263,939,710,308.65/1,039,606.40
  6. Step 6: Final answer
    x = 1,215,786.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.