Home / 1,665,216.71-2,298,054.78-1,020,512.40

Finding the Fourth Proportional to 1,665,216.71, 2,298,054.78 and 1,020,512.40

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Solution

The fourth proportional to 1,665,216.71, 2,298,054.78 and 1,020,512.40 is: 1,408,341.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,216.71 : 2,298,054.78 = 1,020,512.40 : x
  2. Step 2: Convert to fraction form
    1,665,216.71/2,298,054.78 = 1,020,512.40/x
  3. Step 3: Cross multiply
    1,665,216.71x = 2,298,054.78 × 1,020,512.40
  4. Step 4: Simplify right side
    1,665,216.71x = 2,345,193,398,869.27
  5. Step 5: Solve for x
    x = 2,345,193,398,869.27/1,665,216.71
  6. Step 6: Final answer
    x = 1,408,341.26

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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.