Home / 1,427,389.34-2,141,085.63-480,680.78

Finding the Fourth Proportional to 1,427,389.34, 2,141,085.63 and 480,680.78

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Solution

The fourth proportional to 1,427,389.34, 2,141,085.63 and 480,680.78 is: 721,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,389.34 : 2,141,085.63 = 480,680.78 : x
  2. Step 2: Convert to fraction form
    1,427,389.34/2,141,085.63 = 480,680.78/x
  3. Step 3: Cross multiply
    1,427,389.34x = 2,141,085.63 × 480,680.78
  4. Step 4: Simplify right side
    1,427,389.34x = 1,029,178,710,675.19
  5. Step 5: Solve for x
    x = 1,029,178,710,675.19/1,427,389.34
  6. Step 6: Final answer
    x = 721,021.72

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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.