Home / 1,405,816.64-1,939,950.24-832,909.76

Finding the Fourth Proportional to 1,405,816.64, 1,939,950.24 and 832,909.76

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Solution

The fourth proportional to 1,405,816.64, 1,939,950.24 and 832,909.76 is: 1,149,370.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,816.64 : 1,939,950.24 = 832,909.76 : x
  2. Step 2: Convert to fraction form
    1,405,816.64/1,939,950.24 = 832,909.76/x
  3. Step 3: Cross multiply
    1,405,816.64x = 1,939,950.24 × 832,909.76
  4. Step 4: Simplify right side
    1,405,816.64x = 1,615,803,488,810.34
  5. Step 5: Solve for x
    x = 1,615,803,488,810.34/1,405,816.64
  6. Step 6: Final answer
    x = 1,149,370.01

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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.