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Finding the Fourth Proportional to 628,907.60, 943,318.20 and 202,437.20

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Solution

The fourth proportional to 628,907.60, 943,318.20 and 202,437.20 is: 303,641.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,907.60 : 943,318.20 = 202,437.20 : x
  2. Step 2: Convert to fraction form
    628,907.60/943,318.20 = 202,437.20/x
  3. Step 3: Cross multiply
    628,907.60x = 943,318.20 × 202,437.20
  4. Step 4: Simplify right side
    628,907.60x = 190,962,695,117.04
  5. Step 5: Solve for x
    x = 190,962,695,117.04/628,907.60
  6. Step 6: Final answer
    x = 303,641.89

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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.