Home / 911,115.60-1,366,673.40-645,176.40

Finding the Fourth Proportional to 911,115.60, 1,366,673.40 and 645,176.40

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Solution

The fourth proportional to 911,115.60, 1,366,673.40 and 645,176.40 is: 967,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,115.60 : 1,366,673.40 = 645,176.40 : x
  2. Step 2: Convert to fraction form
    911,115.60/1,366,673.40 = 645,176.40/x
  3. Step 3: Cross multiply
    911,115.60x = 1,366,673.40 × 645,176.40
  4. Step 4: Simplify right side
    911,115.60x = 881,745,424,187.76
  5. Step 5: Solve for x
    x = 881,745,424,187.76/911,115.60
  6. Step 6: Final answer
    x = 967,764.60

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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.