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Finding the Fourth Proportional to 972,005.60, 1,459,563.60 and 657,855.20

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Solution

The fourth proportional to 972,005.60, 1,459,563.60 and 657,855.20 is: 987,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,005.60 : 1,459,563.60 = 657,855.20 : x
  2. Step 2: Convert to fraction form
    972,005.60/1,459,563.60 = 657,855.20/x
  3. Step 3: Cross multiply
    972,005.60x = 1,459,563.60 × 657,855.20
  4. Step 4: Simplify right side
    972,005.60x = 960,181,503,990.72
  5. Step 5: Solve for x
    x = 960,181,503,990.72/972,005.60
  6. Step 6: Final answer
    x = 987,835.36

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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.