Home / 898,814.72-1,238,659.08-643,723.04

Finding the Fourth Proportional to 898,814.72, 1,238,659.08 and 643,723.04

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Solution

The fourth proportional to 898,814.72, 1,238,659.08 and 643,723.04 is: 887,116.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,814.72 : 1,238,659.08 = 643,723.04 : x
  2. Step 2: Convert to fraction form
    898,814.72/1,238,659.08 = 643,723.04/x
  3. Step 3: Cross multiply
    898,814.72x = 1,238,659.08 × 643,723.04
  4. Step 4: Simplify right side
    898,814.72x = 797,353,388,501.20
  5. Step 5: Solve for x
    x = 797,353,388,501.20/898,814.72
  6. Step 6: Final answer
    x = 887,116.52

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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.