Home / 674,389.85-930,647.13-368,459.67

Finding the Fourth Proportional to 674,389.85, 930,647.13 and 368,459.67

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Solution

The fourth proportional to 674,389.85, 930,647.13 and 368,459.67 is: 508,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,389.85 : 930,647.13 = 368,459.67 : x
  2. Step 2: Convert to fraction form
    674,389.85/930,647.13 = 368,459.67/x
  3. Step 3: Cross multiply
    674,389.85x = 930,647.13 × 368,459.67
  4. Step 4: Simplify right side
    674,389.85x = 342,905,935,327.40
  5. Step 5: Solve for x
    x = 342,905,935,327.40/674,389.85
  6. Step 6: Final answer
    x = 508,468.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.