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Finding the Fourth Proportional to 1,157,094.60, 1,728,605.44 and 748,962.13

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Solution

The fourth proportional to 1,157,094.60, 1,728,605.44 and 748,962.13 is: 1,118,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,094.60 : 1,728,605.44 = 748,962.13 : x
  2. Step 2: Convert to fraction form
    1,157,094.60/1,728,605.44 = 748,962.13/x
  3. Step 3: Cross multiply
    1,157,094.60x = 1,728,605.44 × 748,962.13
  4. Step 4: Simplify right side
    1,157,094.60x = 1,294,660,008,968.09
  5. Step 5: Solve for x
    x = 1,294,660,008,968.09/1,157,094.60
  6. Step 6: Final answer
    x = 1,118,888.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.