Home / 686,701.26-1,030,432.86-307,606.68

Finding the Fourth Proportional to 686,701.26, 1,030,432.86 and 307,606.68

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Solution

The fourth proportional to 686,701.26, 1,030,432.86 and 307,606.68 is: 461,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,701.26 : 1,030,432.86 = 307,606.68 : x
  2. Step 2: Convert to fraction form
    686,701.26/1,030,432.86 = 307,606.68/x
  3. Step 3: Cross multiply
    686,701.26x = 1,030,432.86 × 307,606.68
  4. Step 4: Simplify right side
    686,701.26x = 316,968,031,027.51
  5. Step 5: Solve for x
    x = 316,968,031,027.51/686,701.26
  6. Step 6: Final answer
    x = 461,580.67

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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.