Home / 1,121,500.70-1,547,651.07-638,055.44

Finding the Fourth Proportional to 1,121,500.70, 1,547,651.07 and 638,055.44

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Solution

The fourth proportional to 1,121,500.70, 1,547,651.07 and 638,055.44 is: 880,505.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,500.70 : 1,547,651.07 = 638,055.44 : x
  2. Step 2: Convert to fraction form
    1,121,500.70/1,547,651.07 = 638,055.44/x
  3. Step 3: Cross multiply
    1,121,500.70x = 1,547,651.07 × 638,055.44
  4. Step 4: Simplify right side
    1,121,500.70x = 987,487,184,435.32
  5. Step 5: Solve for x
    x = 987,487,184,435.32/1,121,500.70
  6. Step 6: Final answer
    x = 880,505.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.