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Finding the Fourth Proportional to 556,878.72, 768,486.24 and 302,230.08

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Solution

The fourth proportional to 556,878.72, 768,486.24 and 302,230.08 is: 417,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,878.72 : 768,486.24 = 302,230.08 : x
  2. Step 2: Convert to fraction form
    556,878.72/768,486.24 = 302,230.08/x
  3. Step 3: Cross multiply
    556,878.72x = 768,486.24 × 302,230.08
  4. Step 4: Simplify right side
    556,878.72x = 232,259,657,794.10
  5. Step 5: Solve for x
    x = 232,259,657,794.10/556,878.72
  6. Step 6: Final answer
    x = 417,074.04

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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.