Home / 764,042.61-1,054,385.07-477,728.67

Finding the Fourth Proportional to 764,042.61, 1,054,385.07 and 477,728.67

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Solution

The fourth proportional to 764,042.61, 1,054,385.07 and 477,728.67 is: 659,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,042.61 : 1,054,385.07 = 477,728.67 : x
  2. Step 2: Convert to fraction form
    764,042.61/1,054,385.07 = 477,728.67/x
  3. Step 3: Cross multiply
    764,042.61x = 1,054,385.07 × 477,728.67
  4. Step 4: Simplify right side
    764,042.61x = 503,709,977,158.96
  5. Step 5: Solve for x
    x = 503,709,977,158.96/764,042.61
  6. Step 6: Final answer
    x = 659,269.48

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Double scale
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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.