Home / 1,290,774.09-1,935,500.17-758,455.05

Finding the Fourth Proportional to 1,290,774.09, 1,935,500.17 and 758,455.05

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Solution

The fourth proportional to 1,290,774.09, 1,935,500.17 and 758,455.05 is: 1,137,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,774.09 : 1,935,500.17 = 758,455.05 : x
  2. Step 2: Convert to fraction form
    1,290,774.09/1,935,500.17 = 758,455.05/x
  3. Step 3: Cross multiply
    1,290,774.09x = 1,935,500.17 × 758,455.05
  4. Step 4: Simplify right side
    1,290,774.09x = 1,467,989,878,212.36
  5. Step 5: Solve for x
    x = 1,467,989,878,212.36/1,290,774.09
  6. Step 6: Final answer
    x = 1,137,294.19

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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.