Home / 688,010.54-949,478.10-382,091.72

Finding the Fourth Proportional to 688,010.54, 949,478.10 and 382,091.72

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Solution

The fourth proportional to 688,010.54, 949,478.10 and 382,091.72 is: 527,299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,010.54 : 949,478.10 = 382,091.72 : x
  2. Step 2: Convert to fraction form
    688,010.54/949,478.10 = 382,091.72/x
  3. Step 3: Cross multiply
    688,010.54x = 949,478.10 × 382,091.72
  4. Step 4: Simplify right side
    688,010.54x = 362,787,720,331.33
  5. Step 5: Solve for x
    x = 362,787,720,331.33/688,010.54
  6. Step 6: Final answer
    x = 527,299.65

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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.