Home / 712,871.79-983,725.47-406,936.02

Finding the Fourth Proportional to 712,871.79, 983,725.47 and 406,936.02

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Solution

The fourth proportional to 712,871.79, 983,725.47 and 406,936.02 is: 561,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,871.79 : 983,725.47 = 406,936.02 : x
  2. Step 2: Convert to fraction form
    712,871.79/983,725.47 = 406,936.02/x
  3. Step 3: Cross multiply
    712,871.79x = 983,725.47 × 406,936.02
  4. Step 4: Simplify right side
    712,871.79x = 400,313,327,534.43
  5. Step 5: Solve for x
    x = 400,313,327,534.43/712,871.79
  6. Step 6: Final answer
    x = 561,550.24

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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.