Home / 558,284.16-770,435.78-303,637.20

Finding the Fourth Proportional to 558,284.16, 770,435.78 and 303,637.20

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Solution

The fourth proportional to 558,284.16, 770,435.78 and 303,637.20 is: 419,021.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,284.16 : 770,435.78 = 303,637.20 : x
  2. Step 2: Convert to fraction form
    558,284.16/770,435.78 = 303,637.20/x
  3. Step 3: Cross multiply
    558,284.16x = 770,435.78 × 303,637.20
  4. Step 4: Simplify right side
    558,284.16x = 233,932,963,019.02
  5. Step 5: Solve for x
    x = 233,932,963,019.02/558,284.16
  6. Step 6: Final answer
    x = 419,021.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.