Home / 641,952.18-885,922.02-355,472.46

Finding the Fourth Proportional to 641,952.18, 885,922.02 and 355,472.46

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Solution

The fourth proportional to 641,952.18, 885,922.02 and 355,472.46 is: 490,567.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,952.18 : 885,922.02 = 355,472.46 : x
  2. Step 2: Convert to fraction form
    641,952.18/885,922.02 = 355,472.46/x
  3. Step 3: Cross multiply
    641,952.18x = 885,922.02 × 355,472.46
  4. Step 4: Simplify right side
    641,952.18x = 314,920,879,817.57
  5. Step 5: Solve for x
    x = 314,920,879,817.57/641,952.18
  6. Step 6: Final answer
    x = 490,567.51

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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.