Home / 740,666.07-1,022,120.51-401,134.32

Finding the Fourth Proportional to 740,666.07, 1,022,120.51 and 401,134.32

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Solution

The fourth proportional to 740,666.07, 1,022,120.51 and 401,134.32 is: 553,566.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,666.07 : 1,022,120.51 = 401,134.32 : x
  2. Step 2: Convert to fraction form
    740,666.07/1,022,120.51 = 401,134.32/x
  3. Step 3: Cross multiply
    740,666.07x = 1,022,120.51 × 401,134.32
  4. Step 4: Simplify right side
    740,666.07x = 410,007,613,731.23
  5. Step 5: Solve for x
    x = 410,007,613,731.23/740,666.07
  6. Step 6: Final answer
    x = 553,566.08

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.