Home / 616,982.20-851,478.78-345,075.40

Finding the Fourth Proportional to 616,982.20, 851,478.78 and 345,075.40

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Solution

The fourth proportional to 616,982.20, 851,478.78 and 345,075.40 is: 476,228.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,982.20 : 851,478.78 = 345,075.40 : x
  2. Step 2: Convert to fraction form
    616,982.20/851,478.78 = 345,075.40/x
  3. Step 3: Cross multiply
    616,982.20x = 851,478.78 × 345,075.40
  4. Step 4: Simplify right side
    616,982.20x = 293,824,380,600.01
  5. Step 5: Solve for x
    x = 293,824,380,600.01/616,982.20
  6. Step 6: Final answer
    x = 476,228.29

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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.