Home / 778,643.60-1,167,965.40-676,000.40

Finding the Fourth Proportional to 778,643.60, 1,167,965.40 and 676,000.40

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Solution

The fourth proportional to 778,643.60, 1,167,965.40 and 676,000.40 is: 1,014,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,643.60 : 1,167,965.40 = 676,000.40 : x
  2. Step 2: Convert to fraction form
    778,643.60/1,167,965.40 = 676,000.40/x
  3. Step 3: Cross multiply
    778,643.60x = 1,167,965.40 × 676,000.40
  4. Step 4: Simplify right side
    778,643.60x = 789,545,077,586.16
  5. Step 5: Solve for x
    x = 789,545,077,586.16/778,643.60
  6. Step 6: Final answer
    x = 1,014,000.60

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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.