Home / 928,406.78-1,392,598.62-254,487.45

Finding the Fourth Proportional to 928,406.78, 1,392,598.62 and 254,487.45

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Solution

The fourth proportional to 928,406.78, 1,392,598.62 and 254,487.45 is: 381,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,406.78 : 1,392,598.62 = 254,487.45 : x
  2. Step 2: Convert to fraction form
    928,406.78/1,392,598.62 = 254,487.45/x
  3. Step 3: Cross multiply
    928,406.78x = 1,392,598.62 × 254,487.45
  4. Step 4: Simplify right side
    928,406.78x = 354,398,871,677.32
  5. Step 5: Solve for x
    x = 354,398,871,677.32/928,406.78
  6. Step 6: Final answer
    x = 381,728.01

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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.