Home / 642,941.85-887,288.55-367,323.80

Finding the Fourth Proportional to 642,941.85, 887,288.55 and 367,323.80

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Solution

The fourth proportional to 642,941.85, 887,288.55 and 367,323.80 is: 506,923.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,941.85 : 887,288.55 = 367,323.80 : x
  2. Step 2: Convert to fraction form
    642,941.85/887,288.55 = 367,323.80/x
  3. Step 3: Cross multiply
    642,941.85x = 887,288.55 × 367,323.80
  4. Step 4: Simplify right side
    642,941.85x = 325,922,201,882.49
  5. Step 5: Solve for x
    x = 325,922,201,882.49/642,941.85
  6. Step 6: Final answer
    x = 506,923.30

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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.