Home / 688,055.60-949,485.21-382,151.54

Finding the Fourth Proportional to 688,055.60, 949,485.21 and 382,151.54

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Solution

The fourth proportional to 688,055.60, 949,485.21 and 382,151.54 is: 527,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,055.60 : 949,485.21 = 382,151.54 : x
  2. Step 2: Convert to fraction form
    688,055.60/949,485.21 = 382,151.54/x
  3. Step 3: Cross multiply
    688,055.60x = 949,485.21 × 382,151.54
  4. Step 4: Simplify right side
    688,055.60x = 362,847,235,208.72
  5. Step 5: Solve for x
    x = 362,847,235,208.72/688,055.60
  6. Step 6: Final answer
    x = 527,351.62

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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.