Home / 1,291,385.32-1,937,826.56-651,739.12

Finding the Fourth Proportional to 1,291,385.32, 1,937,826.56 and 651,739.12

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Solution

The fourth proportional to 1,291,385.32, 1,937,826.56 and 651,739.12 is: 977,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,385.32 : 1,937,826.56 = 651,739.12 : x
  2. Step 2: Convert to fraction form
    1,291,385.32/1,937,826.56 = 651,739.12/x
  3. Step 3: Cross multiply
    1,291,385.32x = 1,937,826.56 × 651,739.12
  4. Step 4: Simplify right side
    1,291,385.32x = 1,262,957,376,927.03
  5. Step 5: Solve for x
    x = 1,262,957,376,927.03/1,291,385.32
  6. Step 6: Final answer
    x = 977,986.47

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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.