Home / 1,678,258.35-2,516,284.63-813,464.39

Finding the Fourth Proportional to 1,678,258.35, 2,516,284.63 and 813,464.39

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Solution

The fourth proportional to 1,678,258.35, 2,516,284.63 and 813,464.39 is: 1,219,662.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,258.35 : 2,516,284.63 = 813,464.39 : x
  2. Step 2: Convert to fraction form
    1,678,258.35/2,516,284.63 = 813,464.39/x
  3. Step 3: Cross multiply
    1,678,258.35x = 2,516,284.63 × 813,464.39
  4. Step 4: Simplify right side
    1,678,258.35x = 2,046,907,938,926.65
  5. Step 5: Solve for x
    x = 2,046,907,938,926.65/1,678,258.35
  6. Step 6: Final answer
    x = 1,219,662.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.