Home / 1,009,403.40-1,392,938.19-556,694.40

Finding the Fourth Proportional to 1,009,403.40, 1,392,938.19 and 556,694.40

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Solution

The fourth proportional to 1,009,403.40, 1,392,938.19 and 556,694.40 is: 768,217.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,403.40 : 1,392,938.19 = 556,694.40 : x
  2. Step 2: Convert to fraction form
    1,009,403.40/1,392,938.19 = 556,694.40/x
  3. Step 3: Cross multiply
    1,009,403.40x = 1,392,938.19 × 556,694.40
  4. Step 4: Simplify right side
    1,009,403.40x = 775,440,889,919.14
  5. Step 5: Solve for x
    x = 775,440,889,919.14/1,009,403.40
  6. Step 6: Final answer
    x = 768,217.04

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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.