Home / 427,807.68-589,946.40-284,573.76

Finding the Fourth Proportional to 427,807.68, 589,946.40 and 284,573.76

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Solution

The fourth proportional to 427,807.68, 589,946.40 and 284,573.76 is: 392,426.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,807.68 : 589,946.40 = 284,573.76 : x
  2. Step 2: Convert to fraction form
    427,807.68/589,946.40 = 284,573.76/x
  3. Step 3: Cross multiply
    427,807.68x = 589,946.40 × 284,573.76
  4. Step 4: Simplify right side
    427,807.68x = 167,883,265,246.46
  5. Step 5: Solve for x
    x = 167,883,265,246.46/427,807.68
  6. Step 6: Final answer
    x = 392,426.96

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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.