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Finding the Fourth Proportional to 445,602.40, 668,403.60 and 346,069.60

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Solution

The fourth proportional to 445,602.40, 668,403.60 and 346,069.60 is: 519,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,602.40 : 668,403.60 = 346,069.60 : x
  2. Step 2: Convert to fraction form
    445,602.40/668,403.60 = 346,069.60/x
  3. Step 3: Cross multiply
    445,602.40x = 668,403.60 × 346,069.60
  4. Step 4: Simplify right side
    445,602.40x = 231,314,166,490.56
  5. Step 5: Solve for x
    x = 231,314,166,490.56/445,602.40
  6. Step 6: Final answer
    x = 519,104.40

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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.