Home / 712,487.61-983,234.43-385,804.22

Finding the Fourth Proportional to 712,487.61, 983,234.43 and 385,804.22

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Solution

The fourth proportional to 712,487.61, 983,234.43 and 385,804.22 is: 532,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,487.61 : 983,234.43 = 385,804.22 : x
  2. Step 2: Convert to fraction form
    712,487.61/983,234.43 = 385,804.22/x
  3. Step 3: Cross multiply
    712,487.61x = 983,234.43 × 385,804.22
  4. Step 4: Simplify right side
    712,487.61x = 379,335,987,427.12
  5. Step 5: Solve for x
    x = 379,335,987,427.12/712,487.61
  6. Step 6: Final answer
    x = 532,410.64

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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.