Home / 920,865.88-1,381,289.12-359,895.52

Finding the Fourth Proportional to 920,865.88, 1,381,289.12 and 359,895.52

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Solution

The fourth proportional to 920,865.88, 1,381,289.12 and 359,895.52 is: 539,839.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,865.88 : 1,381,289.12 = 359,895.52 : x
  2. Step 2: Convert to fraction form
    920,865.88/1,381,289.12 = 359,895.52/x
  3. Step 3: Cross multiply
    920,865.88x = 1,381,289.12 × 359,895.52
  4. Step 4: Simplify right side
    920,865.88x = 497,119,766,112.74
  5. Step 5: Solve for x
    x = 497,119,766,112.74/920,865.88
  6. Step 6: Final answer
    x = 539,839.49

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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.