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Finding the Fourth Proportional to 669,804.72, 924,302.52 and 397,897.44

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Solution

The fourth proportional to 669,804.72, 924,302.52 and 397,897.44 is: 549,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,804.72 : 924,302.52 = 397,897.44 : x
  2. Step 2: Convert to fraction form
    669,804.72/924,302.52 = 397,897.44/x
  3. Step 3: Cross multiply
    669,804.72x = 924,302.52 × 397,897.44
  4. Step 4: Simplify right side
    669,804.72x = 367,777,606,493.55
  5. Step 5: Solve for x
    x = 367,777,606,493.55/669,804.72
  6. Step 6: Final answer
    x = 549,081.84

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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.