Home / 1,376,530.40-1,899,279.60-803,243.36

Finding the Fourth Proportional to 1,376,530.40, 1,899,279.60 and 803,243.36

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Solution

The fourth proportional to 1,376,530.40, 1,899,279.60 and 803,243.36 is: 1,108,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,530.40 : 1,899,279.60 = 803,243.36 : x
  2. Step 2: Convert to fraction form
    1,376,530.40/1,899,279.60 = 803,243.36/x
  3. Step 3: Cross multiply
    1,376,530.40x = 1,899,279.60 × 803,243.36
  4. Step 4: Simplify right side
    1,376,530.40x = 1,525,583,727,483.46
  5. Step 5: Solve for x
    x = 1,525,583,727,483.46/1,376,530.40
  6. Step 6: Final answer
    x = 1,108,281.90

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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.