Home / 1,121,129.93-1,547,158.86-611,832.30

Finding the Fourth Proportional to 1,121,129.93, 1,547,158.86 and 611,832.30

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Solution

The fourth proportional to 1,121,129.93, 1,547,158.86 and 611,832.30 is: 844,328.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,129.93 : 1,547,158.86 = 611,832.30 : x
  2. Step 2: Convert to fraction form
    1,121,129.93/1,547,158.86 = 611,832.30/x
  3. Step 3: Cross multiply
    1,121,129.93x = 1,547,158.86 × 611,832.30
  4. Step 4: Simplify right side
    1,121,129.93x = 946,601,763,779.18
  5. Step 5: Solve for x
    x = 946,601,763,779.18/1,121,129.93
  6. Step 6: Final answer
    x = 844,328.34

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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.