Home / 1,285,009.23-1,773,312.74-712,049.40

Finding the Fourth Proportional to 1,285,009.23, 1,773,312.74 and 712,049.40

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Solution

The fourth proportional to 1,285,009.23, 1,773,312.74 and 712,049.40 is: 982,628.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,009.23 : 1,773,312.74 = 712,049.40 : x
  2. Step 2: Convert to fraction form
    1,285,009.23/1,773,312.74 = 712,049.40/x
  3. Step 3: Cross multiply
    1,285,009.23x = 1,773,312.74 × 712,049.40
  4. Step 4: Simplify right side
    1,285,009.23x = 1,262,686,268,969.11
  5. Step 5: Solve for x
    x = 1,262,686,268,969.11/1,285,009.23
  6. Step 6: Final answer
    x = 982,628.17

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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.