Home / 712,588.79-983,391.69-402,466.52

Finding the Fourth Proportional to 712,588.79, 983,391.69 and 402,466.52

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Solution

The fourth proportional to 712,588.79, 983,391.69 and 402,466.52 is: 555,414.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,588.79 : 983,391.69 = 402,466.52 : x
  2. Step 2: Convert to fraction form
    712,588.79/983,391.69 = 402,466.52/x
  3. Step 3: Cross multiply
    712,588.79x = 983,391.69 × 402,466.52
  4. Step 4: Simplify right side
    712,588.79x = 395,782,232,975.07
  5. Step 5: Solve for x
    x = 395,782,232,975.07/712,588.79
  6. Step 6: Final answer
    x = 555,414.62

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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.