Home / 448,124.20-672,186.30-389,075.20

Finding the Fourth Proportional to 448,124.20, 672,186.30 and 389,075.20

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Solution

The fourth proportional to 448,124.20, 672,186.30 and 389,075.20 is: 583,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,124.20 : 672,186.30 = 389,075.20 : x
  2. Step 2: Convert to fraction form
    448,124.20/672,186.30 = 389,075.20/x
  3. Step 3: Cross multiply
    448,124.20x = 672,186.30 × 389,075.20
  4. Step 4: Simplify right side
    448,124.20x = 261,531,019,109.76
  5. Step 5: Solve for x
    x = 261,531,019,109.76/448,124.20
  6. Step 6: Final answer
    x = 583,612.80

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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.