Home / 1,291,356.07-1,781,590.04-807,737.47

Finding the Fourth Proportional to 1,291,356.07, 1,781,590.04 and 807,737.47

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Solution

The fourth proportional to 1,291,356.07, 1,781,590.04 and 807,737.47 is: 1,114,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,356.07 : 1,781,590.04 = 807,737.47 : x
  2. Step 2: Convert to fraction form
    1,291,356.07/1,781,590.04 = 807,737.47/x
  3. Step 3: Cross multiply
    1,291,356.07x = 1,781,590.04 × 807,737.47
  4. Step 4: Simplify right side
    1,291,356.07x = 1,439,057,026,023.15
  5. Step 5: Solve for x
    x = 1,439,057,026,023.15/1,291,356.07
  6. Step 6: Final answer
    x = 1,114,376.63

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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.