Home / 913,526.38-1,370,381.64-314,408.80

Finding the Fourth Proportional to 913,526.38, 1,370,381.64 and 314,408.80

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Solution

The fourth proportional to 913,526.38, 1,370,381.64 and 314,408.80 is: 471,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,526.38 : 1,370,381.64 = 314,408.80 : x
  2. Step 2: Convert to fraction form
    913,526.38/1,370,381.64 = 314,408.80/x
  3. Step 3: Cross multiply
    913,526.38x = 1,370,381.64 × 314,408.80
  4. Step 4: Simplify right side
    913,526.38x = 430,860,046,974.43
  5. Step 5: Solve for x
    x = 430,860,046,974.43/913,526.38
  6. Step 6: Final answer
    x = 471,644.89

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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.