Home / 867,369.66-1,196,812.71-499,789.50

Finding the Fourth Proportional to 867,369.66, 1,196,812.71 and 499,789.50

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Solution

The fourth proportional to 867,369.66, 1,196,812.71 and 499,789.50 is: 689,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,369.66 : 1,196,812.71 = 499,789.50 : x
  2. Step 2: Convert to fraction form
    867,369.66/1,196,812.71 = 499,789.50/x
  3. Step 3: Cross multiply
    867,369.66x = 1,196,812.71 × 499,789.50
  4. Step 4: Simplify right side
    867,369.66x = 598,154,425,924.55
  5. Step 5: Solve for x
    x = 598,154,425,924.55/867,369.66
  6. Step 6: Final answer
    x = 689,618.80

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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.