Home / 460,128.79-634,880.19-290,264.50

Finding the Fourth Proportional to 460,128.79, 634,880.19 and 290,264.50

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Solution

The fourth proportional to 460,128.79, 634,880.19 and 290,264.50 is: 400,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,128.79 : 634,880.19 = 290,264.50 : x
  2. Step 2: Convert to fraction form
    460,128.79/634,880.19 = 290,264.50/x
  3. Step 3: Cross multiply
    460,128.79x = 634,880.19 × 290,264.50
  4. Step 4: Simplify right side
    460,128.79x = 184,283,180,910.26
  5. Step 5: Solve for x
    x = 184,283,180,910.26/460,128.79
  6. Step 6: Final answer
    x = 400,503.48

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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.