Home / 1,313,643.60-1,970,465.40-1,207,355.40

Finding the Fourth Proportional to 1,313,643.60, 1,970,465.40 and 1,207,355.40

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Solution

The fourth proportional to 1,313,643.60, 1,970,465.40 and 1,207,355.40 is: 1,811,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,643.60 : 1,970,465.40 = 1,207,355.40 : x
  2. Step 2: Convert to fraction form
    1,313,643.60/1,970,465.40 = 1,207,355.40/x
  3. Step 3: Cross multiply
    1,313,643.60x = 1,970,465.40 × 1,207,355.40
  4. Step 4: Simplify right side
    1,313,643.60x = 2,379,052,041,203.16
  5. Step 5: Solve for x
    x = 2,379,052,041,203.16/1,313,643.60
  6. Step 6: Final answer
    x = 1,811,033.10

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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.