Home / 1,405,219.52-1,939,203.30-760,637.72

Finding the Fourth Proportional to 1,405,219.52, 1,939,203.30 and 760,637.72

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Solution

The fourth proportional to 1,405,219.52, 1,939,203.30 and 760,637.72 is: 1,049,680.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,219.52 : 1,939,203.30 = 760,637.72 : x
  2. Step 2: Convert to fraction form
    1,405,219.52/1,939,203.30 = 760,637.72/x
  3. Step 3: Cross multiply
    1,405,219.52x = 1,939,203.30 × 760,637.72
  4. Step 4: Simplify right side
    1,405,219.52x = 1,475,031,176,728.48
  5. Step 5: Solve for x
    x = 1,475,031,176,728.48/1,405,219.52
  6. Step 6: Final answer
    x = 1,049,680.25

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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.