Home / 897,905.15-1,239,135.21-490,033.22

Finding the Fourth Proportional to 897,905.15, 1,239,135.21 and 490,033.22

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Solution

The fourth proportional to 897,905.15, 1,239,135.21 and 490,033.22 is: 676,260.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,905.15 : 1,239,135.21 = 490,033.22 : x
  2. Step 2: Convert to fraction form
    897,905.15/1,239,135.21 = 490,033.22/x
  3. Step 3: Cross multiply
    897,905.15x = 1,239,135.21 × 490,033.22
  4. Step 4: Simplify right side
    897,905.15x = 607,217,416,971.68
  5. Step 5: Solve for x
    x = 607,217,416,971.68/897,905.15
  6. Step 6: Final answer
    x = 676,260.09

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1.5x scale

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.