Home / 1,055,853.72-1,577,980.89-772,139.88

Finding the Fourth Proportional to 1,055,853.72, 1,577,980.89 and 772,139.88

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Solution

The fourth proportional to 1,055,853.72, 1,577,980.89 and 772,139.88 is: 1,153,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055,853.72 : 1,577,980.89 = 772,139.88 : x
  2. Step 2: Convert to fraction form
    1,055,853.72/1,577,980.89 = 772,139.88/x
  3. Step 3: Cross multiply
    1,055,853.72x = 1,577,980.89 × 772,139.88
  4. Step 4: Simplify right side
    1,055,853.72x = 1,218,421,975,046.89
  5. Step 5: Solve for x
    x = 1,218,421,975,046.89/1,055,853.72
  6. Step 6: Final answer
    x = 1,153,968.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.