Home / 1,299,005.48-1,948,009.80-445,918.10

Finding the Fourth Proportional to 1,299,005.48, 1,948,009.80 and 445,918.10

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Solution

The fourth proportional to 1,299,005.48, 1,948,009.80 and 445,918.10 is: 668,706.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,005.48 : 1,948,009.80 = 445,918.10 : x
  2. Step 2: Convert to fraction form
    1,299,005.48/1,948,009.80 = 445,918.10/x
  3. Step 3: Cross multiply
    1,299,005.48x = 1,948,009.80 × 445,918.10
  4. Step 4: Simplify right side
    1,299,005.48x = 868,652,828,797.38
  5. Step 5: Solve for x
    x = 868,652,828,797.38/1,299,005.48
  6. Step 6: Final answer
    x = 668,706.05

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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.