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Finding the Fourth Proportional to 556,709.60, 768,238.56 and 302,055.36

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Solution

The fourth proportional to 556,709.60, 768,238.56 and 302,055.36 is: 416,825.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,709.60 : 768,238.56 = 302,055.36 : x
  2. Step 2: Convert to fraction form
    556,709.60/768,238.56 = 302,055.36/x
  3. Step 3: Cross multiply
    556,709.60x = 768,238.56 × 302,055.36
  4. Step 4: Simplify right side
    556,709.60x = 232,050,574,806.68
  5. Step 5: Solve for x
    x = 232,050,574,806.68/556,709.60
  6. Step 6: Final answer
    x = 416,825.17

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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.