Home / 1,398,042.09-2,097,068.09-425,415.75

Finding the Fourth Proportional to 1,398,042.09, 2,097,068.09 and 425,415.75

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Solution

The fourth proportional to 1,398,042.09, 2,097,068.09 and 425,415.75 is: 638,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,042.09 : 2,097,068.09 = 425,415.75 : x
  2. Step 2: Convert to fraction form
    1,398,042.09/2,097,068.09 = 425,415.75/x
  3. Step 3: Cross multiply
    1,398,042.09x = 2,097,068.09 × 425,415.75
  4. Step 4: Simplify right side
    1,398,042.09x = 892,125,792,181.34
  5. Step 5: Solve for x
    x = 892,125,792,181.34/1,398,042.09
  6. Step 6: Final answer
    x = 638,125.13

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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.