Home / 1,381,292.02-1,906,477.05-928,320.58

Finding the Fourth Proportional to 1,381,292.02, 1,906,477.05 and 928,320.58

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Solution

The fourth proportional to 1,381,292.02, 1,906,477.05 and 928,320.58 is: 1,281,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,292.02 : 1,906,477.05 = 928,320.58 : x
  2. Step 2: Convert to fraction form
    1,381,292.02/1,906,477.05 = 928,320.58/x
  3. Step 3: Cross multiply
    1,381,292.02x = 1,906,477.05 × 928,320.58
  4. Step 4: Simplify right side
    1,381,292.02x = 1,769,821,880,812.69
  5. Step 5: Solve for x
    x = 1,769,821,880,812.69/1,381,292.02
  6. Step 6: Final answer
    x = 1,281,280.03

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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.