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Finding the Fourth Proportional to 615,622.40, 923,433.60 and 416,038.40

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Solution

The fourth proportional to 615,622.40, 923,433.60 and 416,038.40 is: 624,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,622.40 : 923,433.60 = 416,038.40 : x
  2. Step 2: Convert to fraction form
    615,622.40/923,433.60 = 416,038.40/x
  3. Step 3: Cross multiply
    615,622.40x = 923,433.60 × 416,038.40
  4. Step 4: Simplify right side
    615,622.40x = 384,183,837,450.24
  5. Step 5: Solve for x
    x = 384,183,837,450.24/615,622.40
  6. Step 6: Final answer
    x = 624,057.60

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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.