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Finding the Fourth Proportional to 457,030.36, 630,905.58 and 302,074.98

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Solution

The fourth proportional to 457,030.36, 630,905.58 and 302,074.98 is: 416,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,030.36 : 630,905.58 = 302,074.98 : x
  2. Step 2: Convert to fraction form
    457,030.36/630,905.58 = 302,074.98/x
  3. Step 3: Cross multiply
    457,030.36x = 630,905.58 × 302,074.98
  4. Step 4: Simplify right side
    457,030.36x = 190,580,790,460.39
  5. Step 5: Solve for x
    x = 190,580,790,460.39/457,030.36
  6. Step 6: Final answer
    x = 416,998.10

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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.