Home / 1,121,157.54-1,547,247.72-631,295.51

Finding the Fourth Proportional to 1,121,157.54, 1,547,247.72 and 631,295.51

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Solution

The fourth proportional to 1,121,157.54, 1,547,247.72 and 631,295.51 is: 871,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,157.54 : 1,547,247.72 = 631,295.51 : x
  2. Step 2: Convert to fraction form
    1,121,157.54/1,547,247.72 = 631,295.51/x
  3. Step 3: Cross multiply
    1,121,157.54x = 1,547,247.72 × 631,295.51
  4. Step 4: Simplify right side
    1,121,157.54x = 976,770,540,853.20
  5. Step 5: Solve for x
    x = 976,770,540,853.20/1,121,157.54
  6. Step 6: Final answer
    x = 871,216.13

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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.