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Finding the Fourth Proportional to 721,948.28, 996,758.64 and 463,924.65

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Solution

The fourth proportional to 721,948.28, 996,758.64 and 463,924.65 is: 640,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,948.28 : 996,758.64 = 463,924.65 : x
  2. Step 2: Convert to fraction form
    721,948.28/996,758.64 = 463,924.65/x
  3. Step 3: Cross multiply
    721,948.28x = 996,758.64 × 463,924.65
  4. Step 4: Simplify right side
    721,948.28x = 462,420,903,196.48
  5. Step 5: Solve for x
    x = 462,420,903,196.48/721,948.28
  6. Step 6: Final answer
    x = 640,518.05

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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.