Home / 677,432.38-934,869.53-371,489.34

Finding the Fourth Proportional to 677,432.38, 934,869.53 and 371,489.34

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Solution

The fourth proportional to 677,432.38, 934,869.53 and 371,489.34 is: 512,662.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,432.38 : 934,869.53 = 371,489.34 : x
  2. Step 2: Convert to fraction form
    677,432.38/934,869.53 = 371,489.34/x
  3. Step 3: Cross multiply
    677,432.38x = 934,869.53 × 371,489.34
  4. Step 4: Simplify right side
    677,432.38x = 347,294,064,685.81
  5. Step 5: Solve for x
    x = 347,294,064,685.81/677,432.38
  6. Step 6: Final answer
    x = 512,662.33

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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.