Home / 897,905.64-1,239,135.91-490,033.72

Finding the Fourth Proportional to 897,905.64, 1,239,135.91 and 490,033.72

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Solution

The fourth proportional to 897,905.64, 1,239,135.91 and 490,033.72 is: 676,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,905.64 : 1,239,135.91 = 490,033.72 : x
  2. Step 2: Convert to fraction form
    897,905.64/1,239,135.91 = 490,033.72/x
  3. Step 3: Cross multiply
    897,905.64x = 1,239,135.91 × 490,033.72
  4. Step 4: Simplify right side
    897,905.64x = 607,218,379,562.89
  5. Step 5: Solve for x
    x = 607,218,379,562.89/897,905.64
  6. Step 6: Final answer
    x = 676,260.79

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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.