Home / 776,606.20-1,071,788.88-454,295.86

Finding the Fourth Proportional to 776,606.20, 1,071,788.88 and 454,295.86

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Solution

The fourth proportional to 776,606.20, 1,071,788.88 and 454,295.86 is: 626,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,606.20 : 1,071,788.88 = 454,295.86 : x
  2. Step 2: Convert to fraction form
    776,606.20/1,071,788.88 = 454,295.86/x
  3. Step 3: Cross multiply
    776,606.20x = 1,071,788.88 × 454,295.86
  4. Step 4: Simplify right side
    776,606.20x = 486,909,250,978.04
  5. Step 5: Solve for x
    x = 486,909,250,978.04/776,606.20
  6. Step 6: Final answer
    x = 626,970.59

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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.