Home / 774,845.20-1,068,259.14-636,504.47

Finding the Fourth Proportional to 774,845.20, 1,068,259.14 and 636,504.47

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Solution

The fourth proportional to 774,845.20, 1,068,259.14 and 636,504.47 is: 877,532.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,845.20 : 1,068,259.14 = 636,504.47 : x
  2. Step 2: Convert to fraction form
    774,845.20/1,068,259.14 = 636,504.47/x
  3. Step 3: Cross multiply
    774,845.20x = 1,068,259.14 × 636,504.47
  4. Step 4: Simplify right side
    774,845.20x = 679,951,717,728.36
  5. Step 5: Solve for x
    x = 679,951,717,728.36/774,845.20
  6. Step 6: Final answer
    x = 877,532.34

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1.5x scale

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.