Home / 688,035.72-949,520.86-382,113.52

Finding the Fourth Proportional to 688,035.72, 949,520.86 and 382,113.52

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Solution

The fourth proportional to 688,035.72, 949,520.86 and 382,113.52 is: 527,334.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,035.72 : 949,520.86 = 382,113.52 : x
  2. Step 2: Convert to fraction form
    688,035.72/949,520.86 = 382,113.52/x
  3. Step 3: Cross multiply
    688,035.72x = 949,520.86 × 382,113.52
  4. Step 4: Simplify right side
    688,035.72x = 362,824,758,128.03
  5. Step 5: Solve for x
    x = 362,824,758,128.03/688,035.72
  6. Step 6: Final answer
    x = 527,334.19

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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.