Home / 847,769.80-1,273,728.30-637,817.80

Finding the Fourth Proportional to 847,769.80, 1,273,728.30 and 637,817.80

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Solution

The fourth proportional to 847,769.80, 1,273,728.30 and 637,817.80 is: 958,286.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,769.80 : 1,273,728.30 = 637,817.80 : x
  2. Step 2: Convert to fraction form
    847,769.80/1,273,728.30 = 637,817.80/x
  3. Step 3: Cross multiply
    847,769.80x = 1,273,728.30 × 637,817.80
  4. Step 4: Simplify right side
    847,769.80x = 812,406,582,103.74
  5. Step 5: Solve for x
    x = 812,406,582,103.74/847,769.80
  6. Step 6: Final answer
    x = 958,286.77

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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.