Home / 859,098.40-1,288,647.60-719,130.40

Finding the Fourth Proportional to 859,098.40, 1,288,647.60 and 719,130.40

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Solution

The fourth proportional to 859,098.40, 1,288,647.60 and 719,130.40 is: 1,078,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,098.40 : 1,288,647.60 = 719,130.40 : x
  2. Step 2: Convert to fraction form
    859,098.40/1,288,647.60 = 719,130.40/x
  3. Step 3: Cross multiply
    859,098.40x = 1,288,647.60 × 719,130.40
  4. Step 4: Simplify right side
    859,098.40x = 926,705,664,047.04
  5. Step 5: Solve for x
    x = 926,705,664,047.04/859,098.40
  6. Step 6: Final answer
    x = 1,078,695.60

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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.