Home / 647,845.20-972,205.20-363,535.20

Finding the Fourth Proportional to 647,845.20, 972,205.20 and 363,535.20

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Solution

The fourth proportional to 647,845.20, 972,205.20 and 363,535.20 is: 545,548.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,845.20 : 972,205.20 = 363,535.20 : x
  2. Step 2: Convert to fraction form
    647,845.20/972,205.20 = 363,535.20/x
  3. Step 3: Cross multiply
    647,845.20x = 972,205.20 × 363,535.20
  4. Step 4: Simplify right side
    647,845.20x = 353,430,811,823.04
  5. Step 5: Solve for x
    x = 353,430,811,823.04/647,845.20
  6. Step 6: Final answer
    x = 545,548.24

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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.