Home / 1,215,531.66-1,678,509.63-757,428.06

Finding the Fourth Proportional to 1,215,531.66, 1,678,509.63 and 757,428.06

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Solution

The fourth proportional to 1,215,531.66, 1,678,509.63 and 757,428.06 is: 1,045,921.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,531.66 : 1,678,509.63 = 757,428.06 : x
  2. Step 2: Convert to fraction form
    1,215,531.66/1,678,509.63 = 757,428.06/x
  3. Step 3: Cross multiply
    1,215,531.66x = 1,678,509.63 × 757,428.06
  4. Step 4: Simplify right side
    1,215,531.66x = 1,271,350,292,742.22
  5. Step 5: Solve for x
    x = 1,271,350,292,742.22/1,215,531.66
  6. Step 6: Final answer
    x = 1,045,921.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.