Home / 827,823.20-1,142,139.20-483,410.70

Finding the Fourth Proportional to 827,823.20, 1,142,139.20 and 483,410.70

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Solution

The fourth proportional to 827,823.20, 1,142,139.20 and 483,410.70 is: 666,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,823.20 : 1,142,139.20 = 483,410.70 : x
  2. Step 2: Convert to fraction form
    827,823.20/1,142,139.20 = 483,410.70/x
  3. Step 3: Cross multiply
    827,823.20x = 1,142,139.20 × 483,410.70
  4. Step 4: Simplify right side
    827,823.20x = 552,122,307,752.39
  5. Step 5: Solve for x
    x = 552,122,307,752.39/827,823.20
  6. Step 6: Final answer
    x = 666,956.80

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Double scale
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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.