Home / 1,298,767.20-1,948,150.80-457,209.60

Finding the Fourth Proportional to 1,298,767.20, 1,948,150.80 and 457,209.60

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Solution

The fourth proportional to 1,298,767.20, 1,948,150.80 and 457,209.60 is: 685,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,767.20 : 1,948,150.80 = 457,209.60 : x
  2. Step 2: Convert to fraction form
    1,298,767.20/1,948,150.80 = 457,209.60/x
  3. Step 3: Cross multiply
    1,298,767.20x = 1,948,150.80 × 457,209.60
  4. Step 4: Simplify right side
    1,298,767.20x = 890,713,248,007.68
  5. Step 5: Solve for x
    x = 890,713,248,007.68/1,298,767.20
  6. Step 6: Final answer
    x = 685,814.40

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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.