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Finding the Fourth Proportional to 623,640.60, 936,007.65 and 370,604.70

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Solution

The fourth proportional to 623,640.60, 936,007.65 and 370,604.70 is: 556,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,640.60 : 936,007.65 = 370,604.70 : x
  2. Step 2: Convert to fraction form
    623,640.60/936,007.65 = 370,604.70/x
  3. Step 3: Cross multiply
    623,640.60x = 936,007.65 × 370,604.70
  4. Step 4: Simplify right side
    623,640.60x = 346,888,834,325.96
  5. Step 5: Solve for x
    x = 346,888,834,325.96/623,640.60
  6. Step 6: Final answer
    x = 556,231.96

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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.