Home / 740,643.08-1,022,086.50-401,112.68

Finding the Fourth Proportional to 740,643.08, 1,022,086.50 and 401,112.68

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Solution

The fourth proportional to 740,643.08, 1,022,086.50 and 401,112.68 is: 553,534.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,643.08 : 1,022,086.50 = 401,112.68 : x
  2. Step 2: Convert to fraction form
    740,643.08/1,022,086.50 = 401,112.68/x
  3. Step 3: Cross multiply
    740,643.08x = 1,022,086.50 × 401,112.68
  4. Step 4: Simplify right side
    740,643.08x = 409,971,855,206.82
  5. Step 5: Solve for x
    x = 409,971,855,206.82/740,643.08
  6. Step 6: Final answer
    x = 553,534.98

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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.