Home / 712,551.45-983,327.94-426,071.55

Finding the Fourth Proportional to 712,551.45, 983,327.94 and 426,071.55

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Solution

The fourth proportional to 712,551.45, 983,327.94 and 426,071.55 is: 587,982.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,551.45 : 983,327.94 = 426,071.55 : x
  2. Step 2: Convert to fraction form
    712,551.45/983,327.94 = 426,071.55/x
  3. Step 3: Cross multiply
    712,551.45x = 983,327.94 × 426,071.55
  4. Step 4: Simplify right side
    712,551.45x = 418,968,059,554.11
  5. Step 5: Solve for x
    x = 418,968,059,554.11/712,551.45
  6. Step 6: Final answer
    x = 587,982.89

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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.