Home / 712,860.48-983,735.46-406,953.72

Finding the Fourth Proportional to 712,860.48, 983,735.46 and 406,953.72

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Solution

The fourth proportional to 712,860.48, 983,735.46 and 406,953.72 is: 561,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,860.48 : 983,735.46 = 406,953.72 : x
  2. Step 2: Convert to fraction form
    712,860.48/983,735.46 = 406,953.72/x
  3. Step 3: Cross multiply
    712,860.48x = 983,735.46 × 406,953.72
  4. Step 4: Simplify right side
    712,860.48x = 400,334,804,942.91
  5. Step 5: Solve for x
    x = 400,334,804,942.91/712,860.48
  6. Step 6: Final answer
    x = 561,589.28

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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.