Home / 450,660.38-621,911.32-249,456.38

Finding the Fourth Proportional to 450,660.38, 621,911.32 and 249,456.38

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Solution

The fourth proportional to 450,660.38, 621,911.32 and 249,456.38 is: 344,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,660.38 : 621,911.32 = 249,456.38 : x
  2. Step 2: Convert to fraction form
    450,660.38/621,911.32 = 249,456.38/x
  3. Step 3: Cross multiply
    450,660.38x = 621,911.32 × 249,456.38
  4. Step 4: Simplify right side
    450,660.38x = 155,139,742,835.02
  5. Step 5: Solve for x
    x = 155,139,742,835.02/450,660.38
  6. Step 6: Final answer
    x = 344,249.80

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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.