Home / 1,385,876.91-2,078,820.48-426,325.87

Finding the Fourth Proportional to 1,385,876.91, 2,078,820.48 and 426,325.87

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Solution

The fourth proportional to 1,385,876.91, 2,078,820.48 and 426,325.87 is: 639,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,876.91 : 2,078,820.48 = 426,325.87 : x
  2. Step 2: Convert to fraction form
    1,385,876.91/2,078,820.48 = 426,325.87/x
  3. Step 3: Cross multiply
    1,385,876.91x = 2,078,820.48 × 426,325.87
  4. Step 4: Simplify right side
    1,385,876.91x = 886,254,938,616.58
  5. Step 5: Solve for x
    x = 886,254,938,616.58/1,385,876.91
  6. Step 6: Final answer
    x = 639,490.37

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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.