Home / 4,678,391.21-7,020,386.17-4,297,678.25

Finding the Fourth Proportional to 4,678,391.21, 7,020,386.17 and 4,297,678.25

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Solution

The fourth proportional to 4,678,391.21, 7,020,386.17 and 4,297,678.25 is: 6,449,088.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,391.21 : 7,020,386.17 = 4,297,678.25 : x
  2. Step 2: Convert to fraction form
    4,678,391.21/7,020,386.17 = 4,297,678.25/x
  3. Step 3: Cross multiply
    4,678,391.21x = 7,020,386.17 × 4,297,678.25
  4. Step 4: Simplify right side
    4,678,391.21x = 30,171,360,903,563.68
  5. Step 5: Solve for x
    x = 30,171,360,903,563.68/4,678,391.21
  6. Step 6: Final answer
    x = 6,449,088.92

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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.