Home / 688,068.78-949,528.35-386,260.62

Finding the Fourth Proportional to 688,068.78, 949,528.35 and 386,260.62

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Solution

The fourth proportional to 688,068.78, 949,528.35 and 386,260.62 is: 533,035.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,068.78 : 949,528.35 = 386,260.62 : x
  2. Step 2: Convert to fraction form
    688,068.78/949,528.35 = 386,260.62/x
  3. Step 3: Cross multiply
    688,068.78x = 949,528.35 × 386,260.62
  4. Step 4: Simplify right side
    688,068.78x = 366,765,409,178.58
  5. Step 5: Solve for x
    x = 366,765,409,178.58/688,068.78
  6. Step 6: Final answer
    x = 533,035.97

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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.