Home / 1,419,312.75-2,128,999.35-508,554.72

Finding the Fourth Proportional to 1,419,312.75, 2,128,999.35 and 508,554.72

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Solution

The fourth proportional to 1,419,312.75, 2,128,999.35 and 508,554.72 is: 762,842.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,312.75 : 2,128,999.35 = 508,554.72 : x
  2. Step 2: Convert to fraction form
    1,419,312.75/2,128,999.35 = 508,554.72/x
  3. Step 3: Cross multiply
    1,419,312.75x = 2,128,999.35 × 508,554.72
  4. Step 4: Simplify right side
    1,419,312.75x = 1,082,712,668,319.43
  5. Step 5: Solve for x
    x = 1,082,712,668,319.43/1,419,312.75
  6. Step 6: Final answer
    x = 762,842.91

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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.