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Finding the Fourth Proportional to 403,464.52, 604,630.36 and 318,852.72

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Solution

The fourth proportional to 403,464.52, 604,630.36 and 318,852.72 is: 477,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,464.52 : 604,630.36 = 318,852.72 : x
  2. Step 2: Convert to fraction form
    403,464.52/604,630.36 = 318,852.72/x
  3. Step 3: Cross multiply
    403,464.52x = 604,630.36 × 318,852.72
  4. Step 4: Simplify right side
    403,464.52x = 192,788,034,880.58
  5. Step 5: Solve for x
    x = 192,788,034,880.58/403,464.52
  6. Step 6: Final answer
    x = 477,831.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.