Home / 1,686,290.96-2,529,440.76-689,018.96

Finding the Fourth Proportional to 1,686,290.96, 2,529,440.76 and 689,018.96

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Solution

The fourth proportional to 1,686,290.96, 2,529,440.76 and 689,018.96 is: 1,033,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,290.96 : 2,529,440.76 = 689,018.96 : x
  2. Step 2: Convert to fraction form
    1,686,290.96/2,529,440.76 = 689,018.96/x
  3. Step 3: Cross multiply
    1,686,290.96x = 2,529,440.76 × 689,018.96
  4. Step 4: Simplify right side
    1,686,290.96x = 1,742,832,641,836.81
  5. Step 5: Solve for x
    x = 1,742,832,641,836.81/1,686,290.96
  6. Step 6: Final answer
    x = 1,033,530.21

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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.