Home / 898,476.70-1,239,888.44-490,577.36

Finding the Fourth Proportional to 898,476.70, 1,239,888.44 and 490,577.36

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Solution

The fourth proportional to 898,476.70, 1,239,888.44 and 490,577.36 is: 676,991.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,476.70 : 1,239,888.44 = 490,577.36 : x
  2. Step 2: Convert to fraction form
    898,476.70/1,239,888.44 = 490,577.36/x
  3. Step 3: Cross multiply
    898,476.70x = 1,239,888.44 × 490,577.36
  4. Step 4: Simplify right side
    898,476.70x = 608,261,197,589.72
  5. Step 5: Solve for x
    x = 608,261,197,589.72/898,476.70
  6. Step 6: Final answer
    x = 676,991.62

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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.