Home / 864,929.34-1,297,394.01-391,604.22

Finding the Fourth Proportional to 864,929.34, 1,297,394.01 and 391,604.22

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Solution

The fourth proportional to 864,929.34, 1,297,394.01 and 391,604.22 is: 587,406.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,929.34 : 1,297,394.01 = 391,604.22 : x
  2. Step 2: Convert to fraction form
    864,929.34/1,297,394.01 = 391,604.22/x
  3. Step 3: Cross multiply
    864,929.34x = 1,297,394.01 × 391,604.22
  4. Step 4: Simplify right side
    864,929.34x = 508,064,969,318.72
  5. Step 5: Solve for x
    x = 508,064,969,318.72/864,929.34
  6. Step 6: Final answer
    x = 587,406.33

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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.