Home / 827,810.72-1,142,690.88-483,758.36

Finding the Fourth Proportional to 827,810.72, 1,142,690.88 and 483,758.36

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Solution

The fourth proportional to 827,810.72, 1,142,690.88 and 483,758.36 is: 667,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,810.72 : 1,142,690.88 = 483,758.36 : x
  2. Step 2: Convert to fraction form
    827,810.72/1,142,690.88 = 483,758.36/x
  3. Step 3: Cross multiply
    827,810.72x = 1,142,690.88 × 483,758.36
  4. Step 4: Simplify right side
    827,810.72x = 552,786,266,095.76
  5. Step 5: Solve for x
    x = 552,786,266,095.76/827,810.72
  6. Step 6: Final answer
    x = 667,768.91

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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.