Home / 450,319.71-621,339.45-268,996.14

Finding the Fourth Proportional to 450,319.71, 621,339.45 and 268,996.14

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Solution

The fourth proportional to 450,319.71, 621,339.45 and 268,996.14 is: 371,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,319.71 : 621,339.45 = 268,996.14 : x
  2. Step 2: Convert to fraction form
    450,319.71/621,339.45 = 268,996.14/x
  3. Step 3: Cross multiply
    450,319.71x = 621,339.45 × 268,996.14
  4. Step 4: Simplify right side
    450,319.71x = 167,137,913,679.72
  5. Step 5: Solve for x
    x = 167,137,913,679.72/450,319.71
  6. Step 6: Final answer
    x = 371,153.89

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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.