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Finding the Fourth Proportional to 988,014.56, 1,477,962.05 and 788,724.18

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Solution

The fourth proportional to 988,014.56, 1,477,962.05 and 788,724.18 is: 1,179,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,014.56 : 1,477,962.05 = 788,724.18 : x
  2. Step 2: Convert to fraction form
    988,014.56/1,477,962.05 = 788,724.18/x
  3. Step 3: Cross multiply
    988,014.56x = 1,477,962.05 × 788,724.18
  4. Step 4: Simplify right side
    988,014.56x = 1,165,704,402,013.75
  5. Step 5: Solve for x
    x = 1,165,704,402,013.75/988,014.56
  6. Step 6: Final answer
    x = 1,179,845.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.