Home / 1,500,089.36-2,070,128.75-811,761.14

Finding the Fourth Proportional to 1,500,089.36, 2,070,128.75 and 811,761.14

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Solution

The fourth proportional to 1,500,089.36, 2,070,128.75 and 811,761.14 is: 1,120,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,089.36 : 2,070,128.75 = 811,761.14 : x
  2. Step 2: Convert to fraction form
    1,500,089.36/2,070,128.75 = 811,761.14/x
  3. Step 3: Cross multiply
    1,500,089.36x = 2,070,128.75 × 811,761.14
  4. Step 4: Simplify right side
    1,500,089.36x = 1,680,450,075,163.29
  5. Step 5: Solve for x
    x = 1,680,450,075,163.29/1,500,089.36
  6. Step 6: Final answer
    x = 1,120,233.32

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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.