Home / 1,230,502.80-1,845,408.60-389,312.40

Finding the Fourth Proportional to 1,230,502.80, 1,845,408.60 and 389,312.40

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Solution

The fourth proportional to 1,230,502.80, 1,845,408.60 and 389,312.40 is: 583,859.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,502.80 : 1,845,408.60 = 389,312.40 : x
  2. Step 2: Convert to fraction form
    1,230,502.80/1,845,408.60 = 389,312.40/x
  3. Step 3: Cross multiply
    1,230,502.80x = 1,845,408.60 × 389,312.40
  4. Step 4: Simplify right side
    1,230,502.80x = 718,440,451,046.64
  5. Step 5: Solve for x
    x = 718,440,451,046.64/1,230,502.80
  6. Step 6: Final answer
    x = 583,859.26

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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.