Home / 1,230,487.68-1,845,720-389,039.52

Finding the Fourth Proportional to 1,230,487.68, 1,845,720 and 389,039.52

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Solution

The fourth proportional to 1,230,487.68, 1,845,720 and 389,039.52 is: 583,555.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,487.68 : 1,845,720 = 389,039.52 : x
  2. Step 2: Convert to fraction form
    1,230,487.68/1,845,720 = 389,039.52/x
  3. Step 3: Cross multiply
    1,230,487.68x = 1,845,720 × 389,039.52
  4. Step 4: Simplify right side
    1,230,487.68x = 718,058,022,854.40
  5. Step 5: Solve for x
    x = 718,058,022,854.40/1,230,487.68
  6. Step 6: Final answer
    x = 583,555.64

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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.