Home / 1,280,265.72-1,767,114.54-757,433.40

Finding the Fourth Proportional to 1,280,265.72, 1,767,114.54 and 757,433.40

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Solution

The fourth proportional to 1,280,265.72, 1,767,114.54 and 757,433.40 is: 1,045,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,265.72 : 1,767,114.54 = 757,433.40 : x
  2. Step 2: Convert to fraction form
    1,280,265.72/1,767,114.54 = 757,433.40/x
  3. Step 3: Cross multiply
    1,280,265.72x = 1,767,114.54 × 757,433.40
  4. Step 4: Simplify right side
    1,280,265.72x = 1,338,471,574,221.64
  5. Step 5: Solve for x
    x = 1,338,471,574,221.64/1,280,265.72
  6. Step 6: Final answer
    x = 1,045,463.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.