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Finding the Fourth Proportional to 556,895.28, 768,515.07 and 302,246.67

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Solution

The fourth proportional to 556,895.28, 768,515.07 and 302,246.67 is: 417,100.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,895.28 : 768,515.07 = 302,246.67 : x
  2. Step 2: Convert to fraction form
    556,895.28/768,515.07 = 302,246.67/x
  3. Step 3: Cross multiply
    556,895.28x = 768,515.07 × 302,246.67
  4. Step 4: Simplify right side
    556,895.28x = 232,281,120,752.32
  5. Step 5: Solve for x
    x = 232,281,120,752.32/556,895.28
  6. Step 6: Final answer
    x = 417,100.18

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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.