Home / 897,712.12-1,239,291.66-558,289.72

Finding the Fourth Proportional to 897,712.12, 1,239,291.66 and 558,289.72

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Solution

The fourth proportional to 897,712.12, 1,239,291.66 and 558,289.72 is: 770,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,712.12 : 1,239,291.66 = 558,289.72 : x
  2. Step 2: Convert to fraction form
    897,712.12/1,239,291.66 = 558,289.72/x
  3. Step 3: Cross multiply
    897,712.12x = 1,239,291.66 × 558,289.72
  4. Step 4: Simplify right side
    897,712.12x = 691,883,793,859.74
  5. Step 5: Solve for x
    x = 691,883,793,859.74/897,712.12
  6. Step 6: Final answer
    x = 770,719.01

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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.