Home / 1,189,439.18-1,784,143.31-290,888.70

Finding the Fourth Proportional to 1,189,439.18, 1,784,143.31 and 290,888.70

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Solution

The fourth proportional to 1,189,439.18, 1,784,143.31 and 290,888.70 is: 436,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,439.18 : 1,784,143.31 = 290,888.70 : x
  2. Step 2: Convert to fraction form
    1,189,439.18/1,784,143.31 = 290,888.70/x
  3. Step 3: Cross multiply
    1,189,439.18x = 1,784,143.31 × 290,888.70
  4. Step 4: Simplify right side
    1,189,439.18x = 518,987,119,914.62
  5. Step 5: Solve for x
    x = 518,987,119,914.62/1,189,439.18
  6. Step 6: Final answer
    x = 436,329.26

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1.5x scale

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.