Home / 426,913.89-589,143-233,325.51

Finding the Fourth Proportional to 426,913.89, 589,143 and 233,325.51

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Solution

The fourth proportional to 426,913.89, 589,143 and 233,325.51 is: 321,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,913.89 : 589,143 = 233,325.51 : x
  2. Step 2: Convert to fraction form
    426,913.89/589,143 = 233,325.51/x
  3. Step 3: Cross multiply
    426,913.89x = 589,143 × 233,325.51
  4. Step 4: Simplify right side
    426,913.89x = 137,462,090,937.93
  5. Step 5: Solve for x
    x = 137,462,090,937.93/426,913.89
  6. Step 6: Final answer
    x = 321,990.20

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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.