Home / 897,907.40-1,239,138.32-490,035.48

Finding the Fourth Proportional to 897,907.40, 1,239,138.32 and 490,035.48

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Solution

The fourth proportional to 897,907.40, 1,239,138.32 and 490,035.48 is: 676,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,907.40 : 1,239,138.32 = 490,035.48 : x
  2. Step 2: Convert to fraction form
    897,907.40/1,239,138.32 = 490,035.48/x
  3. Step 3: Cross multiply
    897,907.40x = 1,239,138.32 × 490,035.48
  4. Step 4: Simplify right side
    897,907.40x = 607,221,741,427.59
  5. Step 5: Solve for x
    x = 607,221,741,427.59/897,907.40
  6. Step 6: Final answer
    x = 676,263.21

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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.