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Finding the Fourth Proportional to 879,737.60, 1,214,052 and 477,329.60

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Solution

The fourth proportional to 879,737.60, 1,214,052 and 477,329.60 is: 658,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,737.60 : 1,214,052 = 477,329.60 : x
  2. Step 2: Convert to fraction form
    879,737.60/1,214,052 = 477,329.60/x
  3. Step 3: Cross multiply
    879,737.60x = 1,214,052 × 477,329.60
  4. Step 4: Simplify right side
    879,737.60x = 579,502,955,539.20
  5. Step 5: Solve for x
    x = 579,502,955,539.20/879,737.60
  6. Step 6: Final answer
    x = 658,722.50

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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.