Home / 1,285,077.86-1,773,417.94-712,127.60

Finding the Fourth Proportional to 1,285,077.86, 1,773,417.94 and 712,127.60

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Solution

The fourth proportional to 1,285,077.86, 1,773,417.94 and 712,127.60 is: 982,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,077.86 : 1,773,417.94 = 712,127.60 : x
  2. Step 2: Convert to fraction form
    1,285,077.86/1,773,417.94 = 712,127.60/x
  3. Step 3: Cross multiply
    1,285,077.86x = 1,773,417.94 × 712,127.60
  4. Step 4: Simplify right side
    1,285,077.86x = 1,262,899,861,409.14
  5. Step 5: Solve for x
    x = 1,262,899,861,409.14/1,285,077.86
  6. Step 6: Final answer
    x = 982,741.90

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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.