Home / 1,038,675.80-1,557,722.10-328,921.40

Finding the Fourth Proportional to 1,038,675.80, 1,557,722.10 and 328,921.40

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Solution

The fourth proportional to 1,038,675.80, 1,557,722.10 and 328,921.40 is: 493,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,675.80 : 1,557,722.10 = 328,921.40 : x
  2. Step 2: Convert to fraction form
    1,038,675.80/1,557,722.10 = 328,921.40/x
  3. Step 3: Cross multiply
    1,038,675.80x = 1,557,722.10 × 328,921.40
  4. Step 4: Simplify right side
    1,038,675.80x = 512,368,133,942.94
  5. Step 5: Solve for x
    x = 512,368,133,942.94/1,038,675.80
  6. Step 6: Final answer
    x = 493,289.76

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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.