Home / 849,440.72-1,172,167.80-505,257.68

Finding the Fourth Proportional to 849,440.72, 1,172,167.80 and 505,257.68

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Solution

The fourth proportional to 849,440.72, 1,172,167.80 and 505,257.68 is: 697,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,440.72 : 1,172,167.80 = 505,257.68 : x
  2. Step 2: Convert to fraction form
    849,440.72/1,172,167.80 = 505,257.68/x
  3. Step 3: Cross multiply
    849,440.72x = 1,172,167.80 × 505,257.68
  4. Step 4: Simplify right side
    849,440.72x = 592,246,783,198.70
  5. Step 5: Solve for x
    x = 592,246,783,198.70/849,440.72
  6. Step 6: Final answer
    x = 697,219.68

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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.