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Finding the Fourth Proportional to 497,466.04, 686,527.47 and 279,743.23

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Solution

The fourth proportional to 497,466.04, 686,527.47 and 279,743.23 is: 386,059.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,466.04 : 686,527.47 = 279,743.23 : x
  2. Step 2: Convert to fraction form
    497,466.04/686,527.47 = 279,743.23/x
  3. Step 3: Cross multiply
    497,466.04x = 686,527.47 × 279,743.23
  4. Step 4: Simplify right side
    497,466.04x = 192,051,411,941.53
  5. Step 5: Solve for x
    x = 192,051,411,941.53/497,466.04
  6. Step 6: Final answer
    x = 386,059.34

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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.