Home / 1,221,407.24-1,686,415.55-814,468.50

Finding the Fourth Proportional to 1,221,407.24, 1,686,415.55 and 814,468.50

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Solution

The fourth proportional to 1,221,407.24, 1,686,415.55 and 814,468.50 is: 1,124,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,407.24 : 1,686,415.55 = 814,468.50 : x
  2. Step 2: Convert to fraction form
    1,221,407.24/1,686,415.55 = 814,468.50/x
  3. Step 3: Cross multiply
    1,221,407.24x = 1,686,415.55 × 814,468.50
  4. Step 4: Simplify right side
    1,221,407.24x = 1,373,532,339,312.83
  5. Step 5: Solve for x
    x = 1,373,532,339,312.83/1,221,407.24
  6. Step 6: Final answer
    x = 1,124,549.04

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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.