Home / 988,017.63-1,363,446.54-558,288.51

Finding the Fourth Proportional to 988,017.63, 1,363,446.54 and 558,288.51

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Solution

The fourth proportional to 988,017.63, 1,363,446.54 and 558,288.51 is: 770,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,017.63 : 1,363,446.54 = 558,288.51 : x
  2. Step 2: Convert to fraction form
    988,017.63/1,363,446.54 = 558,288.51/x
  3. Step 3: Cross multiply
    988,017.63x = 1,363,446.54 × 558,288.51
  4. Step 4: Simplify right side
    988,017.63x = 761,196,537,281.26
  5. Step 5: Solve for x
    x = 761,196,537,281.26/988,017.63
  6. Step 6: Final answer
    x = 770,428.09

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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.