Home / 1,258,980.75-1,737,395.60-686,020.91

Finding the Fourth Proportional to 1,258,980.75, 1,737,395.60 and 686,020.91

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Solution

The fourth proportional to 1,258,980.75, 1,737,395.60 and 686,020.91 is: 946,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,980.75 : 1,737,395.60 = 686,020.91 : x
  2. Step 2: Convert to fraction form
    1,258,980.75/1,737,395.60 = 686,020.91/x
  3. Step 3: Cross multiply
    1,258,980.75x = 1,737,395.60 × 686,020.91
  4. Step 4: Simplify right side
    1,258,980.75x = 1,191,889,698,424.91
  5. Step 5: Solve for x
    x = 1,191,889,698,424.91/1,258,980.75
  6. Step 6: Final answer
    x = 946,710.03

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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.