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Finding the Fourth Proportional to 628,007.90, 942,069.45 and 207,284.70

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Solution

The fourth proportional to 628,007.90, 942,069.45 and 207,284.70 is: 310,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,007.90 : 942,069.45 = 207,284.70 : x
  2. Step 2: Convert to fraction form
    628,007.90/942,069.45 = 207,284.70/x
  3. Step 3: Cross multiply
    628,007.90x = 942,069.45 × 207,284.70
  4. Step 4: Simplify right side
    628,007.90x = 195,276,583,322.42
  5. Step 5: Solve for x
    x = 195,276,583,322.42/628,007.90
  6. Step 6: Final answer
    x = 310,946.06

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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.