Home / 1,390,836-1,919,353.68-754,932

Finding the Fourth Proportional to 1,390,836, 1,919,353.68 and 754,932

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Solution

The fourth proportional to 1,390,836, 1,919,353.68 and 754,932 is: 1,041,806.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,836 : 1,919,353.68 = 754,932 : x
  2. Step 2: Convert to fraction form
    1,390,836/1,919,353.68 = 754,932/x
  3. Step 3: Cross multiply
    1,390,836x = 1,919,353.68 × 754,932
  4. Step 4: Simplify right side
    1,390,836x = 1,448,981,512,349.76
  5. Step 5: Solve for x
    x = 1,448,981,512,349.76/1,390,836
  6. Step 6: Final answer
    x = 1,041,806.16

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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.