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Finding the Fourth Proportional to 483,860.40, 724,235.40 and 343,892.40

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Solution

The fourth proportional to 483,860.40, 724,235.40 and 343,892.40 is: 514,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,860.40 : 724,235.40 = 343,892.40 : x
  2. Step 2: Convert to fraction form
    483,860.40/724,235.40 = 343,892.40/x
  3. Step 3: Cross multiply
    483,860.40x = 724,235.40 × 343,892.40
  4. Step 4: Simplify right side
    483,860.40x = 249,059,049,870.96
  5. Step 5: Solve for x
    x = 249,059,049,870.96/483,860.40
  6. Step 6: Final answer
    x = 514,733.28

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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.