Home / 1,247,505.28-1,721,554.64-703,639.36

Finding the Fourth Proportional to 1,247,505.28, 1,721,554.64 and 703,639.36

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Solution

The fourth proportional to 1,247,505.28, 1,721,554.64 and 703,639.36 is: 971,020.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,505.28 : 1,721,554.64 = 703,639.36 : x
  2. Step 2: Convert to fraction form
    1,247,505.28/1,721,554.64 = 703,639.36/x
  3. Step 3: Cross multiply
    1,247,505.28x = 1,721,554.64 × 703,639.36
  4. Step 4: Simplify right side
    1,247,505.28x = 1,211,353,605,094.63
  5. Step 5: Solve for x
    x = 1,211,353,605,094.63/1,247,505.28
  6. Step 6: Final answer
    x = 971,020.82

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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.