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Finding the Fourth Proportional to 740,888, 1,022,425.44 and 401,356.16

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Solution

The fourth proportional to 740,888, 1,022,425.44 and 401,356.16 is: 553,871.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,888 : 1,022,425.44 = 401,356.16 : x
  2. Step 2: Convert to fraction form
    740,888/1,022,425.44 = 401,356.16/x
  3. Step 3: Cross multiply
    740,888x = 1,022,425.44 × 401,356.16
  4. Step 4: Simplify right side
    740,888x = 410,356,748,484.71
  5. Step 5: Solve for x
    x = 410,356,748,484.71/740,888
  6. Step 6: Final answer
    x = 553,871.50

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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.