Home / 774,844.20-1,068,257.76-636,503.47

Finding the Fourth Proportional to 774,844.20, 1,068,257.76 and 636,503.47

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Solution

The fourth proportional to 774,844.20, 1,068,257.76 and 636,503.47 is: 877,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,844.20 : 1,068,257.76 = 636,503.47 : x
  2. Step 2: Convert to fraction form
    774,844.20/1,068,257.76 = 636,503.47/x
  3. Step 3: Cross multiply
    774,844.20x = 1,068,257.76 × 636,503.47
  4. Step 4: Simplify right side
    774,844.20x = 679,949,771,094.43
  5. Step 5: Solve for x
    x = 679,949,771,094.43/774,844.20
  6. Step 6: Final answer
    x = 877,530.96

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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.