Home / 858,267.60-1,287,984.60-479,187.60

Finding the Fourth Proportional to 858,267.60, 1,287,984.60 and 479,187.60

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Solution

The fourth proportional to 858,267.60, 1,287,984.60 and 479,187.60 is: 719,107.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,267.60 : 1,287,984.60 = 479,187.60 : x
  2. Step 2: Convert to fraction form
    858,267.60/1,287,984.60 = 479,187.60/x
  3. Step 3: Cross multiply
    858,267.60x = 1,287,984.60 × 479,187.60
  4. Step 4: Simplify right side
    858,267.60x = 617,186,249,310.96
  5. Step 5: Solve for x
    x = 617,186,249,310.96/858,267.60
  6. Step 6: Final answer
    x = 719,107.01

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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.