Home / 925,312.40-1,387,513.39-326,186.48

Finding the Fourth Proportional to 925,312.40, 1,387,513.39 and 326,186.48

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Solution

The fourth proportional to 925,312.40, 1,387,513.39 and 326,186.48 is: 489,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,312.40 : 1,387,513.39 = 326,186.48 : x
  2. Step 2: Convert to fraction form
    925,312.40/1,387,513.39 = 326,186.48/x
  3. Step 3: Cross multiply
    925,312.40x = 1,387,513.39 × 326,186.48
  4. Step 4: Simplify right side
    925,312.40x = 452,588,108,636.97
  5. Step 5: Solve for x
    x = 452,588,108,636.97/925,312.40
  6. Step 6: Final answer
    x = 489,119.25

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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.