Home / 1,078,820.64-1,488,722.04-619,612.20

Finding the Fourth Proportional to 1,078,820.64, 1,488,722.04 and 619,612.20

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Solution

The fourth proportional to 1,078,820.64, 1,488,722.04 and 619,612.20 is: 855,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,820.64 : 1,488,722.04 = 619,612.20 : x
  2. Step 2: Convert to fraction form
    1,078,820.64/1,488,722.04 = 619,612.20/x
  3. Step 3: Cross multiply
    1,078,820.64x = 1,488,722.04 × 619,612.20
  4. Step 4: Simplify right side
    1,078,820.64x = 922,430,338,392.89
  5. Step 5: Solve for x
    x = 922,430,338,392.89/1,078,820.64
  6. Step 6: Final answer
    x = 855,035.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.