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Finding the Fourth Proportional to 648,005.40, 970,841.70 and 529,032.60

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Solution

The fourth proportional to 648,005.40, 970,841.70 and 529,032.60 is: 792,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,005.40 : 970,841.70 = 529,032.60 : x
  2. Step 2: Convert to fraction form
    648,005.40/970,841.70 = 529,032.60/x
  3. Step 3: Cross multiply
    648,005.40x = 970,841.70 × 529,032.60
  4. Step 4: Simplify right side
    648,005.40x = 513,606,908,739.42
  5. Step 5: Solve for x
    x = 513,606,908,739.42/648,005.40
  6. Step 6: Final answer
    x = 792,596.65

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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.