Home / 721,741.73-1,080,455.63-436,569.26

Finding the Fourth Proportional to 721,741.73, 1,080,455.63 and 436,569.26

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Solution

The fourth proportional to 721,741.73, 1,080,455.63 and 436,569.26 is: 653,549.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,741.73 : 1,080,455.63 = 436,569.26 : x
  2. Step 2: Convert to fraction form
    721,741.73/1,080,455.63 = 436,569.26/x
  3. Step 3: Cross multiply
    721,741.73x = 1,080,455.63 × 436,569.26
  4. Step 4: Simplify right side
    721,741.73x = 471,693,707,266.81
  5. Step 5: Solve for x
    x = 471,693,707,266.81/721,741.73
  6. Step 6: Final answer
    x = 653,549.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.