Home / 1,876,381.40-2,814,572.90-456,428.72

Finding the Fourth Proportional to 1,876,381.40, 2,814,572.90 and 456,428.72

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Solution

The fourth proportional to 1,876,381.40, 2,814,572.90 and 456,428.72 is: 684,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876,381.40 : 2,814,572.90 = 456,428.72 : x
  2. Step 2: Convert to fraction form
    1,876,381.40/2,814,572.90 = 456,428.72/x
  3. Step 3: Cross multiply
    1,876,381.40x = 2,814,572.90 × 456,428.72
  4. Step 4: Simplify right side
    1,876,381.40x = 1,284,651,893,161.90
  5. Step 5: Solve for x
    x = 1,284,651,893,161.90/1,876,381.40
  6. Step 6: Final answer
    x = 684,643.27

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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.