Home / 745,322.95-1,029,185.06-721,221.27

Finding the Fourth Proportional to 745,322.95, 1,029,185.06 and 721,221.27

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Solution

The fourth proportional to 745,322.95, 1,029,185.06 and 721,221.27 is: 995,904.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,322.95 : 1,029,185.06 = 721,221.27 : x
  2. Step 2: Convert to fraction form
    745,322.95/1,029,185.06 = 721,221.27/x
  3. Step 3: Cross multiply
    745,322.95x = 1,029,185.06 × 721,221.27
  4. Step 4: Simplify right side
    745,322.95x = 742,270,152,432.12
  5. Step 5: Solve for x
    x = 742,270,152,432.12/745,322.95
  6. Step 6: Final answer
    x = 995,904.07

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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.