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Finding the Fourth Proportional to 559,440.57, 772,028.07 and 304,791.76

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Solution

The fourth proportional to 559,440.57, 772,028.07 and 304,791.76 is: 420,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,440.57 : 772,028.07 = 304,791.76 : x
  2. Step 2: Convert to fraction form
    559,440.57/772,028.07 = 304,791.76/x
  3. Step 3: Cross multiply
    559,440.57x = 772,028.07 × 304,791.76
  4. Step 4: Simplify right side
    559,440.57x = 235,307,792,294.63
  5. Step 5: Solve for x
    x = 235,307,792,294.63/559,440.57
  6. Step 6: Final answer
    x = 420,612.67

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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.