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Finding the Fourth Proportional to 888,987.60, 1,334,064.60 and 509,907.60

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Solution

The fourth proportional to 888,987.60, 1,334,064.60 and 509,907.60 is: 765,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,987.60 : 1,334,064.60 = 509,907.60 : x
  2. Step 2: Convert to fraction form
    888,987.60/1,334,064.60 = 509,907.60/x
  3. Step 3: Cross multiply
    888,987.60x = 1,334,064.60 × 509,907.60
  4. Step 4: Simplify right side
    888,987.60x = 680,249,678,430.96
  5. Step 5: Solve for x
    x = 680,249,678,430.96/888,987.60
  6. Step 6: Final answer
    x = 765,195.91

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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.