Home / 465,746.40-642,974.76-313,584.66

Finding the Fourth Proportional to 465,746.40, 642,974.76 and 313,584.66

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Solution

The fourth proportional to 465,746.40, 642,974.76 and 313,584.66 is: 432,911.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,746.40 : 642,974.76 = 313,584.66 : x
  2. Step 2: Convert to fraction form
    465,746.40/642,974.76 = 313,584.66/x
  3. Step 3: Cross multiply
    465,746.40x = 642,974.76 × 313,584.66
  4. Step 4: Simplify right side
    465,746.40x = 201,627,021,503.18
  5. Step 5: Solve for x
    x = 201,627,021,503.18/465,746.40
  6. Step 6: Final answer
    x = 432,911.60

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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.