Home / 447,759.40-617,907-243,807.16

Finding the Fourth Proportional to 447,759.40, 617,907 and 243,807.16

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Solution

The fourth proportional to 447,759.40, 617,907 and 243,807.16 is: 336,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,759.40 : 617,907 = 243,807.16 : x
  2. Step 2: Convert to fraction form
    447,759.40/617,907 = 243,807.16/x
  3. Step 3: Cross multiply
    447,759.40x = 617,907 × 243,807.16
  4. Step 4: Simplify right side
    447,759.40x = 150,650,150,814.12
  5. Step 5: Solve for x
    x = 150,650,150,814.12/447,759.40
  6. Step 6: Final answer
    x = 336,453.35

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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.