Home / 721,547.14-1,082,355.56-189,068.68

Finding the Fourth Proportional to 721,547.14, 1,082,355.56 and 189,068.68

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Solution

The fourth proportional to 721,547.14, 1,082,355.56 and 189,068.68 is: 283,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,547.14 : 1,082,355.56 = 189,068.68 : x
  2. Step 2: Convert to fraction form
    721,547.14/1,082,355.56 = 189,068.68/x
  3. Step 3: Cross multiply
    721,547.14x = 1,082,355.56 × 189,068.68
  4. Step 4: Simplify right side
    721,547.14x = 204,639,539,199.98
  5. Step 5: Solve for x
    x = 204,639,539,199.98/721,547.14
  6. Step 6: Final answer
    x = 283,612.16

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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.