Home / 988,012.63-1,363,439.64-558,283.51

Finding the Fourth Proportional to 988,012.63, 1,363,439.64 and 558,283.51

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Solution

The fourth proportional to 988,012.63, 1,363,439.64 and 558,283.51 is: 770,421.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,012.63 : 1,363,439.64 = 558,283.51 : x
  2. Step 2: Convert to fraction form
    988,012.63/1,363,439.64 = 558,283.51/x
  3. Step 3: Cross multiply
    988,012.63x = 1,363,439.64 × 558,283.51
  4. Step 4: Simplify right side
    988,012.63x = 761,185,867,892.34
  5. Step 5: Solve for x
    x = 761,185,867,892.34/988,012.63
  6. Step 6: Final answer
    x = 770,421.19

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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.