Home / 686,051.57-1,028,527.88-326,041.74

Finding the Fourth Proportional to 686,051.57, 1,028,527.88 and 326,041.74

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Solution

The fourth proportional to 686,051.57, 1,028,527.88 and 326,041.74 is: 488,801.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,051.57 : 1,028,527.88 = 326,041.74 : x
  2. Step 2: Convert to fraction form
    686,051.57/1,028,527.88 = 326,041.74/x
  3. Step 3: Cross multiply
    686,051.57x = 1,028,527.88 × 326,041.74
  4. Step 4: Simplify right side
    686,051.57x = 335,343,018,003.50
  5. Step 5: Solve for x
    x = 335,343,018,003.50/686,051.57
  6. Step 6: Final answer
    x = 488,801.47

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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.