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Finding the Fourth Proportional to 1,569,479.20, 2,355,968.40 and 860,891.20

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Solution

The fourth proportional to 1,569,479.20, 2,355,968.40 and 860,891.20 is: 1,292,296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,479.20 : 2,355,968.40 = 860,891.20 : x
  2. Step 2: Convert to fraction form
    1,569,479.20/2,355,968.40 = 860,891.20/x
  3. Step 3: Cross multiply
    1,569,479.20x = 2,355,968.40 × 860,891.20
  4. Step 4: Simplify right side
    1,569,479.20x = 2,028,232,463,038.08
  5. Step 5: Solve for x
    x = 2,028,232,463,038.08/1,569,479.20
  6. Step 6: Final answer
    x = 1,292,296.49

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