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Finding the Fourth Proportional to 418,800.70, 627,459.90 and 404,925.40

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Solution

The fourth proportional to 418,800.70, 627,459.90 and 404,925.40 is: 606,671.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,800.70 : 627,459.90 = 404,925.40 : x
  2. Step 2: Convert to fraction form
    418,800.70/627,459.90 = 404,925.40/x
  3. Step 3: Cross multiply
    418,800.70x = 627,459.90 × 404,925.40
  4. Step 4: Simplify right side
    418,800.70x = 254,074,450,991.46
  5. Step 5: Solve for x
    x = 254,074,450,991.46/418,800.70
  6. Step 6: Final answer
    x = 606,671.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.