Home / 688,080.57-949,518.96-382,175.62

Finding the Fourth Proportional to 688,080.57, 949,518.96 and 382,175.62

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Solution

The fourth proportional to 688,080.57, 949,518.96 and 382,175.62 is: 527,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,080.57 : 949,518.96 = 382,175.62 : x
  2. Step 2: Convert to fraction form
    688,080.57/949,518.96 = 382,175.62/x
  3. Step 3: Cross multiply
    688,080.57x = 949,518.96 × 382,175.62
  4. Step 4: Simplify right side
    688,080.57x = 362,882,993,432.80
  5. Step 5: Solve for x
    x = 362,882,993,432.80/688,080.57
  6. Step 6: Final answer
    x = 527,384.45

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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.