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Finding the Fourth Proportional to 450,446.46, 621,607.35 and 249,242.46

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Solution

The fourth proportional to 450,446.46, 621,607.35 and 249,242.46 is: 343,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,446.46 : 621,607.35 = 249,242.46 : x
  2. Step 2: Convert to fraction form
    450,446.46/621,607.35 = 249,242.46/x
  3. Step 3: Cross multiply
    450,446.46x = 621,607.35 × 249,242.46
  4. Step 4: Simplify right side
    450,446.46x = 154,930,945,068.08
  5. Step 5: Solve for x
    x = 154,930,945,068.08/450,446.46
  6. Step 6: Final answer
    x = 343,949.75

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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.