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Finding the Fourth Proportional to 556,868.58, 768,479.04 and 302,219.77

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Solution

The fourth proportional to 556,868.58, 768,479.04 and 302,219.77 is: 417,063.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,868.58 : 768,479.04 = 302,219.77 : x
  2. Step 2: Convert to fraction form
    556,868.58/768,479.04 = 302,219.77/x
  3. Step 3: Cross multiply
    556,868.58x = 768,479.04 × 302,219.77
  4. Step 4: Simplify right side
    556,868.58x = 232,249,556,797.42
  5. Step 5: Solve for x
    x = 232,249,556,797.42/556,868.58
  6. Step 6: Final answer
    x = 417,063.50

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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.