Home / 1,270,518.78-1,905,802.75-310,982.78

Finding the Fourth Proportional to 1,270,518.78, 1,905,802.75 and 310,982.78

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Solution

The fourth proportional to 1,270,518.78, 1,905,802.75 and 310,982.78 is: 466,480.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,518.78 : 1,905,802.75 = 310,982.78 : x
  2. Step 2: Convert to fraction form
    1,270,518.78/1,905,802.75 = 310,982.78/x
  3. Step 3: Cross multiply
    1,270,518.78x = 1,905,802.75 × 310,982.78
  4. Step 4: Simplify right side
    1,270,518.78x = 592,671,838,706.57
  5. Step 5: Solve for x
    x = 592,671,838,706.57/1,270,518.78
  6. Step 6: Final answer
    x = 466,480.19

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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.