Home / 1,353,723.80-1,867,902-772,681.64

Finding the Fourth Proportional to 1,353,723.80, 1,867,902 and 772,681.64

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Solution

The fourth proportional to 1,353,723.80, 1,867,902 and 772,681.64 is: 1,066,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,723.80 : 1,867,902 = 772,681.64 : x
  2. Step 2: Convert to fraction form
    1,353,723.80/1,867,902 = 772,681.64/x
  3. Step 3: Cross multiply
    1,353,723.80x = 1,867,902 × 772,681.64
  4. Step 4: Simplify right side
    1,353,723.80x = 1,443,293,580,719.28
  5. Step 5: Solve for x
    x = 1,443,293,580,719.28/1,353,723.80
  6. Step 6: Final answer
    x = 1,066,165.48

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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.