Home / 1,405,818.64-1,939,953-832,911.76

Finding the Fourth Proportional to 1,405,818.64, 1,939,953 and 832,911.76

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Solution

The fourth proportional to 1,405,818.64, 1,939,953 and 832,911.76 is: 1,149,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,818.64 : 1,939,953 = 832,911.76 : x
  2. Step 2: Convert to fraction form
    1,405,818.64/1,939,953 = 832,911.76/x
  3. Step 3: Cross multiply
    1,405,818.64x = 1,939,953 × 832,911.76
  4. Step 4: Simplify right side
    1,405,818.64x = 1,615,809,667,547.28
  5. Step 5: Solve for x
    x = 1,615,809,667,547.28/1,405,818.64
  6. Step 6: Final answer
    x = 1,149,372.77

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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.