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Finding the Fourth Proportional to 556,858.80, 768,467.88 and 302,210.28

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Solution

The fourth proportional to 556,858.80, 768,467.88 and 302,210.28 is: 417,051.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,858.80 : 768,467.88 = 302,210.28 : x
  2. Step 2: Convert to fraction form
    556,858.80/768,467.88 = 302,210.28/x
  3. Step 3: Cross multiply
    556,858.80x = 768,467.88 × 302,210.28
  4. Step 4: Simplify right side
    556,858.80x = 232,238,893,185.81
  5. Step 5: Solve for x
    x = 232,238,893,185.81/556,858.80
  6. Step 6: Final answer
    x = 417,051.67

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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.