Home / 918,997.43-1,378,562.06-245,075.20

Finding the Fourth Proportional to 918,997.43, 1,378,562.06 and 245,075.20

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Solution

The fourth proportional to 918,997.43, 1,378,562.06 and 245,075.20 is: 367,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,997.43 : 1,378,562.06 = 245,075.20 : x
  2. Step 2: Convert to fraction form
    918,997.43/1,378,562.06 = 245,075.20/x
  3. Step 3: Cross multiply
    918,997.43x = 1,378,562.06 × 245,075.20
  4. Step 4: Simplify right side
    918,997.43x = 337,851,371,341.54
  5. Step 5: Solve for x
    x = 337,851,371,341.54/918,997.43
  6. Step 6: Final answer
    x = 367,630.38

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.