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Finding the Fourth Proportional to 556,878.16, 768,492.39 and 302,229.42

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Solution

The fourth proportional to 556,878.16, 768,492.39 and 302,229.42 is: 417,076.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,878.16 : 768,492.39 = 302,229.42 : x
  2. Step 2: Convert to fraction form
    556,878.16/768,492.39 = 302,229.42/x
  3. Step 3: Cross multiply
    556,878.16x = 768,492.39 × 302,229.42
  4. Step 4: Simplify right side
    556,878.16x = 232,261,009,304.11
  5. Step 5: Solve for x
    x = 232,261,009,304.11/556,878.16
  6. Step 6: Final answer
    x = 417,076.89

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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.