Home / 688,020.88-949,492.86-382,102.36

Finding the Fourth Proportional to 688,020.88, 949,492.86 and 382,102.36

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Solution

The fourth proportional to 688,020.88, 949,492.86 and 382,102.36 is: 527,314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,020.88 : 949,492.86 = 382,102.36 : x
  2. Step 2: Convert to fraction form
    688,020.88/949,492.86 = 382,102.36/x
  3. Step 3: Cross multiply
    688,020.88x = 949,492.86 × 382,102.36
  4. Step 4: Simplify right side
    688,020.88x = 362,803,462,609.15
  5. Step 5: Solve for x
    x = 362,803,462,609.15/688,020.88
  6. Step 6: Final answer
    x = 527,314.61

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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.