Home / 740,987.51-1,022,561.96-401,455.76

Finding the Fourth Proportional to 740,987.51, 1,022,561.96 and 401,455.76

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Solution

The fourth proportional to 740,987.51, 1,022,561.96 and 401,455.76 is: 554,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,987.51 : 1,022,561.96 = 401,455.76 : x
  2. Step 2: Convert to fraction form
    740,987.51/1,022,561.96 = 401,455.76/x
  3. Step 3: Cross multiply
    740,987.51x = 1,022,561.96 × 401,455.76
  4. Step 4: Simplify right side
    740,987.51x = 410,513,381,678.80
  5. Step 5: Solve for x
    x = 410,513,381,678.80/740,987.51
  6. Step 6: Final answer
    x = 554,008.51

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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.