Home / 1,129,500.36-1,558,850.94-645,998.40

Finding the Fourth Proportional to 1,129,500.36, 1,558,850.94 and 645,998.40

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Solution

The fourth proportional to 1,129,500.36, 1,558,850.94 and 645,998.40 is: 891,558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,500.36 : 1,558,850.94 = 645,998.40 : x
  2. Step 2: Convert to fraction form
    1,129,500.36/1,558,850.94 = 645,998.40/x
  3. Step 3: Cross multiply
    1,129,500.36x = 1,558,850.94 × 645,998.40
  4. Step 4: Simplify right side
    1,129,500.36x = 1,007,015,213,078.50
  5. Step 5: Solve for x
    x = 1,007,015,213,078.50/1,129,500.36
  6. Step 6: Final answer
    x = 891,558.12

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1.5x scale

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.