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Finding the Fourth Proportional to 660,254.68, 990,447.63 and 239,563.36

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Solution

The fourth proportional to 660,254.68, 990,447.63 and 239,563.36 is: 359,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,254.68 : 990,447.63 = 239,563.36 : x
  2. Step 2: Convert to fraction form
    660,254.68/990,447.63 = 239,563.36/x
  3. Step 3: Cross multiply
    660,254.68x = 990,447.63 × 239,563.36
  4. Step 4: Simplify right side
    660,254.68x = 237,274,962,146.84
  5. Step 5: Solve for x
    x = 237,274,962,146.84/660,254.68
  6. Step 6: Final answer
    x = 359,368.85

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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.