Home / 3,316,385.40-4,974,021.63-920,473.44

Finding the Fourth Proportional to 3,316,385.40, 4,974,021.63 and 920,473.44

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Solution

The fourth proportional to 3,316,385.40, 4,974,021.63 and 920,473.44 is: 1,380,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316,385.40 : 4,974,021.63 = 920,473.44 : x
  2. Step 2: Convert to fraction form
    3,316,385.40/4,974,021.63 = 920,473.44/x
  3. Step 3: Cross multiply
    3,316,385.40x = 4,974,021.63 × 920,473.44
  4. Step 4: Simplify right side
    3,316,385.40x = 4,578,454,800,400.51
  5. Step 5: Solve for x
    x = 4,578,454,800,400.51/3,316,385.40
  6. Step 6: Final answer
    x = 1,380,555.71

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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.