Home / 745,088.82-1,028,194.02-422,779.68

Finding the Fourth Proportional to 745,088.82, 1,028,194.02 and 422,779.68

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Solution

The fourth proportional to 745,088.82, 1,028,194.02 and 422,779.68 is: 583,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,088.82 : 1,028,194.02 = 422,779.68 : x
  2. Step 2: Convert to fraction form
    745,088.82/1,028,194.02 = 422,779.68/x
  3. Step 3: Cross multiply
    745,088.82x = 1,028,194.02 × 422,779.68
  4. Step 4: Simplify right side
    745,088.82x = 434,699,538,753.51
  5. Step 5: Solve for x
    x = 434,699,538,753.51/745,088.82
  6. Step 6: Final answer
    x = 583,419.76

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1.5x scale

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.