Home / 920,855.52-1,381,151.88-289,752.84

Finding the Fourth Proportional to 920,855.52, 1,381,151.88 and 289,752.84

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Solution

The fourth proportional to 920,855.52, 1,381,151.88 and 289,752.84 is: 434,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,855.52 : 1,381,151.88 = 289,752.84 : x
  2. Step 2: Convert to fraction form
    920,855.52/1,381,151.88 = 289,752.84/x
  3. Step 3: Cross multiply
    920,855.52x = 1,381,151.88 × 289,752.84
  4. Step 4: Simplify right side
    920,855.52x = 400,192,679,701.34
  5. Step 5: Solve for x
    x = 400,192,679,701.34/920,855.52
  6. Step 6: Final answer
    x = 434,587.91

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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.