Home / 386,325.20-579,487.80-358,331.60

Finding the Fourth Proportional to 386,325.20, 579,487.80 and 358,331.60

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Solution

The fourth proportional to 386,325.20, 579,487.80 and 358,331.60 is: 537,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,325.20 : 579,487.80 = 358,331.60 : x
  2. Step 2: Convert to fraction form
    386,325.20/579,487.80 = 358,331.60/x
  3. Step 3: Cross multiply
    386,325.20x = 579,487.80 × 358,331.60
  4. Step 4: Simplify right side
    386,325.20x = 207,648,790,554.48
  5. Step 5: Solve for x
    x = 207,648,790,554.48/386,325.20
  6. Step 6: Final answer
    x = 537,497.40

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1.5x scale

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.