Home / 1,036,136.47-1,555,090.40-405,493.15

Finding the Fourth Proportional to 1,036,136.47, 1,555,090.40 and 405,493.15

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Solution

The fourth proportional to 1,036,136.47, 1,555,090.40 and 405,493.15 is: 608,586.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,136.47 : 1,555,090.40 = 405,493.15 : x
  2. Step 2: Convert to fraction form
    1,036,136.47/1,555,090.40 = 405,493.15/x
  3. Step 3: Cross multiply
    1,036,136.47x = 1,555,090.40 × 405,493.15
  4. Step 4: Simplify right side
    1,036,136.47x = 630,578,504,830.76
  5. Step 5: Solve for x
    x = 630,578,504,830.76/1,036,136.47
  6. Step 6: Final answer
    x = 608,586.34

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Double scale
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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.