Home / 1,405,406.52-1,939,461.64-760,826.72

Finding the Fourth Proportional to 1,405,406.52, 1,939,461.64 and 760,826.72

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Solution

The fourth proportional to 1,405,406.52, 1,939,461.64 and 760,826.72 is: 1,049,941.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,406.52 : 1,939,461.64 = 760,826.72 : x
  2. Step 2: Convert to fraction form
    1,405,406.52/1,939,461.64 = 760,826.72/x
  3. Step 3: Cross multiply
    1,405,406.52x = 1,939,461.64 × 760,826.72
  4. Step 4: Simplify right side
    1,405,406.52x = 1,475,594,238,127.02
  5. Step 5: Solve for x
    x = 1,475,594,238,127.02/1,405,406.52
  6. Step 6: Final answer
    x = 1,049,941.22

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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.