Home / 1,224,020.40-1,836,030.60-1,087,551.60

Finding the Fourth Proportional to 1,224,020.40, 1,836,030.60 and 1,087,551.60

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Solution

The fourth proportional to 1,224,020.40, 1,836,030.60 and 1,087,551.60 is: 1,631,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,020.40 : 1,836,030.60 = 1,087,551.60 : x
  2. Step 2: Convert to fraction form
    1,224,020.40/1,836,030.60 = 1,087,551.60/x
  3. Step 3: Cross multiply
    1,224,020.40x = 1,836,030.60 × 1,087,551.60
  4. Step 4: Simplify right side
    1,224,020.40x = 1,996,778,016,678.96
  5. Step 5: Solve for x
    x = 1,996,778,016,678.96/1,224,020.40
  6. Step 6: Final answer
    x = 1,631,327.40

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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.