Home / 1,490,289.16-2,056,867.43-878,406.20

Finding the Fourth Proportional to 1,490,289.16, 2,056,867.43 and 878,406.20

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Solution

The fourth proportional to 1,490,289.16, 2,056,867.43 and 878,406.20 is: 1,212,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,289.16 : 2,056,867.43 = 878,406.20 : x
  2. Step 2: Convert to fraction form
    1,490,289.16/2,056,867.43 = 878,406.20/x
  3. Step 3: Cross multiply
    1,490,289.16x = 2,056,867.43 × 878,406.20
  4. Step 4: Simplify right side
    1,490,289.16x = 1,806,765,090,342.01
  5. Step 5: Solve for x
    x = 1,806,765,090,342.01/1,490,289.16
  6. Step 6: Final answer
    x = 1,212,358.74

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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.