Home / 1,389,471.52-2,084,204.04-912,708.76

Finding the Fourth Proportional to 1,389,471.52, 2,084,204.04 and 912,708.76

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Solution

The fourth proportional to 1,389,471.52, 2,084,204.04 and 912,708.76 is: 1,369,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,471.52 : 2,084,204.04 = 912,708.76 : x
  2. Step 2: Convert to fraction form
    1,389,471.52/2,084,204.04 = 912,708.76/x
  3. Step 3: Cross multiply
    1,389,471.52x = 2,084,204.04 × 912,708.76
  4. Step 4: Simplify right side
    1,389,471.52x = 1,902,271,284,935.39
  5. Step 5: Solve for x
    x = 1,902,271,284,935.39/1,389,471.52
  6. Step 6: Final answer
    x = 1,369,061.01

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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.