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Finding the Fourth Proportional to 606,810.40, 910,215.60 and 207,415.60

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Solution

The fourth proportional to 606,810.40, 910,215.60 and 207,415.60 is: 311,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,810.40 : 910,215.60 = 207,415.60 : x
  2. Step 2: Convert to fraction form
    606,810.40/910,215.60 = 207,415.60/x
  3. Step 3: Cross multiply
    606,810.40x = 910,215.60 × 207,415.60
  4. Step 4: Simplify right side
    606,810.40x = 188,792,914,803.36
  5. Step 5: Solve for x
    x = 188,792,914,803.36/606,810.40
  6. Step 6: Final answer
    x = 311,123.40

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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.