Home / 1,500,750.74-2,071,033.79-812,419.22

Finding the Fourth Proportional to 1,500,750.74, 2,071,033.79 and 812,419.22

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Solution

The fourth proportional to 1,500,750.74, 2,071,033.79 and 812,419.22 is: 1,121,137.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,750.74 : 2,071,033.79 = 812,419.22 : x
  2. Step 2: Convert to fraction form
    1,500,750.74/2,071,033.79 = 812,419.22/x
  3. Step 3: Cross multiply
    1,500,750.74x = 2,071,033.79 × 812,419.22
  4. Step 4: Simplify right side
    1,500,750.74x = 1,682,547,641,848.18
  5. Step 5: Solve for x
    x = 1,682,547,641,848.18/1,500,750.74
  6. Step 6: Final answer
    x = 1,121,137.31

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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.