Home / 688,028.74-949,492.38-382,133.45

Finding the Fourth Proportional to 688,028.74, 949,492.38 and 382,133.45

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Solution

The fourth proportional to 688,028.74, 949,492.38 and 382,133.45 is: 527,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,028.74 : 949,492.38 = 382,133.45 : x
  2. Step 2: Convert to fraction form
    688,028.74/949,492.38 = 382,133.45/x
  3. Step 3: Cross multiply
    688,028.74x = 949,492.38 × 382,133.45
  4. Step 4: Simplify right side
    688,028.74x = 362,832,798,918.11
  5. Step 5: Solve for x
    x = 362,832,798,918.11/688,028.74
  6. Step 6: Final answer
    x = 527,351.23

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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.