Home / 686,017.40-1,029,377.08-326,594.48

Finding the Fourth Proportional to 686,017.40, 1,029,377.08 and 326,594.48

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Solution

The fourth proportional to 686,017.40, 1,029,377.08 and 326,594.48 is: 490,058.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,017.40 : 1,029,377.08 = 326,594.48 : x
  2. Step 2: Convert to fraction form
    686,017.40/1,029,377.08 = 326,594.48/x
  3. Step 3: Cross multiply
    686,017.40x = 1,029,377.08 × 326,594.48
  4. Step 4: Simplify right side
    686,017.40x = 336,188,872,166.52
  5. Step 5: Solve for x
    x = 336,188,872,166.52/686,017.40
  6. Step 6: Final answer
    x = 490,058.81

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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.