Home / 1,686,312.96-2,529,473.76-689,040.96

Finding the Fourth Proportional to 1,686,312.96, 2,529,473.76 and 689,040.96

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Solution

The fourth proportional to 1,686,312.96, 2,529,473.76 and 689,040.96 is: 1,033,563.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,312.96 : 2,529,473.76 = 689,040.96 : x
  2. Step 2: Convert to fraction form
    1,686,312.96/2,529,473.76 = 689,040.96/x
  3. Step 3: Cross multiply
    1,686,312.96x = 2,529,473.76 × 689,040.96
  4. Step 4: Simplify right side
    1,686,312.96x = 1,742,911,027,885.21
  5. Step 5: Solve for x
    x = 1,742,911,027,885.21/1,686,312.96
  6. Step 6: Final answer
    x = 1,033,563.21

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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.