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Finding the Fourth Proportional to 1,344,421, 1,855,339.86 and 740,847.88

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Solution

The fourth proportional to 1,344,421, 1,855,339.86 and 740,847.88 is: 1,022,391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,421 : 1,855,339.86 = 740,847.88 : x
  2. Step 2: Convert to fraction form
    1,344,421/1,855,339.86 = 740,847.88/x
  3. Step 3: Cross multiply
    1,344,421x = 1,855,339.86 × 740,847.88
  4. Step 4: Simplify right side
    1,344,421x = 1,374,524,601,960.50
  5. Step 5: Solve for x
    x = 1,374,524,601,960.50/1,344,421
  6. Step 6: Final answer
    x = 1,022,391.50

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1.5x scale

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.