Home / 1,557,933.12-2,337,017.85-420,678.75

Finding the Fourth Proportional to 1,557,933.12, 2,337,017.85 and 420,678.75

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Solution

The fourth proportional to 1,557,933.12, 2,337,017.85 and 420,678.75 is: 631,050.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,933.12 : 2,337,017.85 = 420,678.75 : x
  2. Step 2: Convert to fraction form
    1,557,933.12/2,337,017.85 = 420,678.75/x
  3. Step 3: Cross multiply
    1,557,933.12x = 2,337,017.85 × 420,678.75
  4. Step 4: Simplify right side
    1,557,933.12x = 983,133,747,865.69
  5. Step 5: Solve for x
    x = 983,133,747,865.69/1,557,933.12
  6. Step 6: Final answer
    x = 631,050.03

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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.