Home / 1,422,802.18-1,963,452.72-778,234.96

Finding the Fourth Proportional to 1,422,802.18, 1,963,452.72 and 778,234.96

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Solution

The fourth proportional to 1,422,802.18, 1,963,452.72 and 778,234.96 is: 1,073,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,802.18 : 1,963,452.72 = 778,234.96 : x
  2. Step 2: Convert to fraction form
    1,422,802.18/1,963,452.72 = 778,234.96/x
  3. Step 3: Cross multiply
    1,422,802.18x = 1,963,452.72 × 778,234.96
  4. Step 4: Simplify right side
    1,422,802.18x = 1,528,027,549,011.09
  5. Step 5: Solve for x
    x = 1,528,027,549,011.09/1,422,802.18
  6. Step 6: Final answer
    x = 1,073,956.43

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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.