Home / 1,230,529.80-1,845,449.10-389,339.40

Finding the Fourth Proportional to 1,230,529.80, 1,845,449.10 and 389,339.40

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Solution

The fourth proportional to 1,230,529.80, 1,845,449.10 and 389,339.40 is: 583,899.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,529.80 : 1,845,449.10 = 389,339.40 : x
  2. Step 2: Convert to fraction form
    1,230,529.80/1,845,449.10 = 389,339.40/x
  3. Step 3: Cross multiply
    1,230,529.80x = 1,845,449.10 × 389,339.40
  4. Step 4: Simplify right side
    1,230,529.80x = 718,506,045,324.54
  5. Step 5: Solve for x
    x = 718,506,045,324.54/1,230,529.80
  6. Step 6: Final answer
    x = 583,899.75

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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.