Home / 1,280,561.40-1,916,694.90-907,313.40

Finding the Fourth Proportional to 1,280,561.40, 1,916,694.90 and 907,313.40

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Solution

The fourth proportional to 1,280,561.40, 1,916,694.90 and 907,313.40 is: 1,358,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,561.40 : 1,916,694.90 = 907,313.40 : x
  2. Step 2: Convert to fraction form
    1,280,561.40/1,916,694.90 = 907,313.40/x
  3. Step 3: Cross multiply
    1,280,561.40x = 1,916,694.90 × 907,313.40
  4. Step 4: Simplify right side
    1,280,561.40x = 1,739,042,966,481.66
  5. Step 5: Solve for x
    x = 1,739,042,966,481.66/1,280,561.40
  6. Step 6: Final answer
    x = 1,358,031.69

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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.