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Finding the Fourth Proportional to 391,595.09, 540,124.74 and 333,302.90

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Solution

The fourth proportional to 391,595.09, 540,124.74 and 333,302.90 is: 459,722.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,595.09 : 540,124.74 = 333,302.90 : x
  2. Step 2: Convert to fraction form
    391,595.09/540,124.74 = 333,302.90/x
  3. Step 3: Cross multiply
    391,595.09x = 540,124.74 × 333,302.90
  4. Step 4: Simplify right side
    391,595.09x = 180,025,139,503.12
  5. Step 5: Solve for x
    x = 180,025,139,503.12/391,595.09
  6. Step 6: Final answer
    x = 459,722.67

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1.5x scale

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.