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Finding the Fourth Proportional to 621,849.60, 933,004.80 and 248,140.80

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Solution

The fourth proportional to 621,849.60, 933,004.80 and 248,140.80 is: 372,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,849.60 : 933,004.80 = 248,140.80 : x
  2. Step 2: Convert to fraction form
    621,849.60/933,004.80 = 248,140.80/x
  3. Step 3: Cross multiply
    621,849.60x = 933,004.80 × 248,140.80
  4. Step 4: Simplify right side
    621,849.60x = 231,516,557,475.84
  5. Step 5: Solve for x
    x = 231,516,557,475.84/621,849.60
  6. Step 6: Final answer
    x = 372,303.14

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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.