Home / 1,038,640.30-1,557,798.45-328,842.70

Finding the Fourth Proportional to 1,038,640.30, 1,557,798.45 and 328,842.70

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Solution

The fourth proportional to 1,038,640.30, 1,557,798.45 and 328,842.70 is: 493,212.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,640.30 : 1,557,798.45 = 328,842.70 : x
  2. Step 2: Convert to fraction form
    1,038,640.30/1,557,798.45 = 328,842.70/x
  3. Step 3: Cross multiply
    1,038,640.30x = 1,557,798.45 × 328,842.70
  4. Step 4: Simplify right side
    1,038,640.30x = 512,270,648,353.82
  5. Step 5: Solve for x
    x = 512,270,648,353.82/1,038,640.30
  6. Step 6: Final answer
    x = 493,212.76

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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.