Home / 740,070.41-1,021,297.14-400,538.66

Finding the Fourth Proportional to 740,070.41, 1,021,297.14 and 400,538.66

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Solution

The fourth proportional to 740,070.41, 1,021,297.14 and 400,538.66 is: 552,743.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,070.41 : 1,021,297.14 = 400,538.66 : x
  2. Step 2: Convert to fraction form
    740,070.41/1,021,297.14 = 400,538.66/x
  3. Step 3: Cross multiply
    740,070.41x = 1,021,297.14 × 400,538.66
  4. Step 4: Simplify right side
    740,070.41x = 409,068,982,810.95
  5. Step 5: Solve for x
    x = 409,068,982,810.95/740,070.41
  6. Step 6: Final answer
    x = 552,743.33

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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.