Home / 1,053,041.80-1,579,101.90-421,745.80

Finding the Fourth Proportional to 1,053,041.80, 1,579,101.90 and 421,745.80

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Solution

The fourth proportional to 1,053,041.80, 1,579,101.90 and 421,745.80 is: 632,434.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,041.80 : 1,579,101.90 = 421,745.80 : x
  2. Step 2: Convert to fraction form
    1,053,041.80/1,579,101.90 = 421,745.80/x
  3. Step 3: Cross multiply
    1,053,041.80x = 1,579,101.90 × 421,745.80
  4. Step 4: Simplify right side
    1,053,041.80x = 665,979,594,097.02
  5. Step 5: Solve for x
    x = 665,979,594,097.02/1,053,041.80
  6. Step 6: Final answer
    x = 632,434.15

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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.