Home / 743,436.55-1,025,982.99-421,209.44

Finding the Fourth Proportional to 743,436.55, 1,025,982.99 and 421,209.44

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Solution

The fourth proportional to 743,436.55, 1,025,982.99 and 421,209.44 is: 581,292.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,436.55 : 1,025,982.99 = 421,209.44 : x
  2. Step 2: Convert to fraction form
    743,436.55/1,025,982.99 = 421,209.44/x
  3. Step 3: Cross multiply
    743,436.55x = 1,025,982.99 × 421,209.44
  4. Step 4: Simplify right side
    743,436.55x = 432,153,715,537.51
  5. Step 5: Solve for x
    x = 432,153,715,537.51/743,436.55
  6. Step 6: Final answer
    x = 581,292.00

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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.