Home / 867,621.90-1,197,330.45-499,895.81

Finding the Fourth Proportional to 867,621.90, 1,197,330.45 and 499,895.81

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Solution

The fourth proportional to 867,621.90, 1,197,330.45 and 499,895.81 is: 689,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,621.90 : 1,197,330.45 = 499,895.81 : x
  2. Step 2: Convert to fraction form
    867,621.90/1,197,330.45 = 499,895.81/x
  3. Step 3: Cross multiply
    867,621.90x = 1,197,330.45 × 499,895.81
  4. Step 4: Simplify right side
    867,621.90x = 598,540,475,140.41
  5. Step 5: Solve for x
    x = 598,540,475,140.41/867,621.90
  6. Step 6: Final answer
    x = 689,863.26

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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.