Home / 1,121,498.64-1,547,638.38-1,031,219.28

Finding the Fourth Proportional to 1,121,498.64, 1,547,638.38 and 1,031,219.28

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Solution

The fourth proportional to 1,121,498.64, 1,547,638.38 and 1,031,219.28 is: 1,423,055.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,498.64 : 1,547,638.38 = 1,031,219.28 : x
  2. Step 2: Convert to fraction form
    1,121,498.64/1,547,638.38 = 1,031,219.28/x
  3. Step 3: Cross multiply
    1,121,498.64x = 1,547,638.38 × 1,031,219.28
  4. Step 4: Simplify right side
    1,121,498.64x = 1,595,954,535,923.97
  5. Step 5: Solve for x
    x = 1,595,954,535,923.97/1,121,498.64
  6. Step 6: Final answer
    x = 1,423,055.26

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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.