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Finding the Fourth Proportional to 518,683.48, 776,622.30 and 268,840.60

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Solution

The fourth proportional to 518,683.48, 776,622.30 and 268,840.60 is: 402,533.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,683.48 : 776,622.30 = 268,840.60 : x
  2. Step 2: Convert to fraction form
    518,683.48/776,622.30 = 268,840.60/x
  3. Step 3: Cross multiply
    518,683.48x = 776,622.30 × 268,840.60
  4. Step 4: Simplify right side
    518,683.48x = 208,787,605,105.38
  5. Step 5: Solve for x
    x = 208,787,605,105.38/518,683.48
  6. Step 6: Final answer
    x = 402,533.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.