Home / 1,237,078.16-1,852,467.15-815,074.64

Finding the Fourth Proportional to 1,237,078.16, 1,852,467.15 and 815,074.64

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Solution

The fourth proportional to 1,237,078.16, 1,852,467.15 and 815,074.64 is: 1,220,536.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,078.16 : 1,852,467.15 = 815,074.64 : x
  2. Step 2: Convert to fraction form
    1,237,078.16/1,852,467.15 = 815,074.64/x
  3. Step 3: Cross multiply
    1,237,078.16x = 1,852,467.15 × 815,074.64
  4. Step 4: Simplify right side
    1,237,078.16x = 1,509,898,995,398.08
  5. Step 5: Solve for x
    x = 1,509,898,995,398.08/1,237,078.16
  6. Step 6: Final answer
    x = 1,220,536.46

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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.