Home / 712,743.84-983,213.60-440,724.80

Finding the Fourth Proportional to 712,743.84, 983,213.60 and 440,724.80

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Solution

The fourth proportional to 712,743.84, 983,213.60 and 440,724.80 is: 607,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,743.84 : 983,213.60 = 440,724.80 : x
  2. Step 2: Convert to fraction form
    712,743.84/983,213.60 = 440,724.80/x
  3. Step 3: Cross multiply
    712,743.84x = 983,213.60 × 440,724.80
  4. Step 4: Simplify right side
    712,743.84x = 433,326,617,217.28
  5. Step 5: Solve for x
    x = 433,326,617,217.28/712,743.84
  6. Step 6: Final answer
    x = 607,969.64

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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.