Home / 911,541.60-1,367,312.40-905,636.70

Finding the Fourth Proportional to 911,541.60, 1,367,312.40 and 905,636.70

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Solution

The fourth proportional to 911,541.60, 1,367,312.40 and 905,636.70 is: 1,358,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,541.60 : 1,367,312.40 = 905,636.70 : x
  2. Step 2: Convert to fraction form
    911,541.60/1,367,312.40 = 905,636.70/x
  3. Step 3: Cross multiply
    911,541.60x = 1,367,312.40 × 905,636.70
  4. Step 4: Simplify right side
    911,541.60x = 1,238,288,289,805.08
  5. Step 5: Solve for x
    x = 1,238,288,289,805.08/911,541.60
  6. Step 6: Final answer
    x = 1,358,455.05

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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.