Home / 1,230,547.20-1,845,820.80-389,164.80

Finding the Fourth Proportional to 1,230,547.20, 1,845,820.80 and 389,164.80

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Solution

The fourth proportional to 1,230,547.20, 1,845,820.80 and 389,164.80 is: 583,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,547.20 : 1,845,820.80 = 389,164.80 : x
  2. Step 2: Convert to fraction form
    1,230,547.20/1,845,820.80 = 389,164.80/x
  3. Step 3: Cross multiply
    1,230,547.20x = 1,845,820.80 × 389,164.80
  4. Step 4: Simplify right side
    1,230,547.20x = 718,328,482,467.84
  5. Step 5: Solve for x
    x = 718,328,482,467.84/1,230,547.20
  6. Step 6: Final answer
    x = 583,747.20

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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.