Home / 1,245,849.36-1,861,946.29-909,598.11

Finding the Fourth Proportional to 1,245,849.36, 1,861,946.29 and 909,598.11

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Solution

The fourth proportional to 1,245,849.36, 1,861,946.29 and 909,598.11 is: 1,359,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,849.36 : 1,861,946.29 = 909,598.11 : x
  2. Step 2: Convert to fraction form
    1,245,849.36/1,861,946.29 = 909,598.11/x
  3. Step 3: Cross multiply
    1,245,849.36x = 1,861,946.29 × 909,598.11
  4. Step 4: Simplify right side
    1,245,849.36x = 1,693,622,820,460.21
  5. Step 5: Solve for x
    x = 1,693,622,820,460.21/1,245,849.36
  6. Step 6: Final answer
    x = 1,359,412.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.