Home / 1,077,890.40-1,615,798.80-837,871.20

Finding the Fourth Proportional to 1,077,890.40, 1,615,798.80 and 837,871.20

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Solution

The fourth proportional to 1,077,890.40, 1,615,798.80 and 837,871.20 is: 1,256,000.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,890.40 : 1,615,798.80 = 837,871.20 : x
  2. Step 2: Convert to fraction form
    1,077,890.40/1,615,798.80 = 837,871.20/x
  3. Step 3: Cross multiply
    1,077,890.40x = 1,615,798.80 × 837,871.20
  4. Step 4: Simplify right side
    1,077,890.40x = 1,353,831,279,514.56
  5. Step 5: Solve for x
    x = 1,353,831,279,514.56/1,077,890.40
  6. Step 6: Final answer
    x = 1,256,000.87

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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.