Home / 1,128,305.51-1,557,061.50-638,264.56

Finding the Fourth Proportional to 1,128,305.51, 1,557,061.50 and 638,264.56

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Solution

The fourth proportional to 1,128,305.51, 1,557,061.50 and 638,264.56 is: 880,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,305.51 : 1,557,061.50 = 638,264.56 : x
  2. Step 2: Convert to fraction form
    1,128,305.51/1,557,061.50 = 638,264.56/x
  3. Step 3: Cross multiply
    1,128,305.51x = 1,557,061.50 × 638,264.56
  4. Step 4: Simplify right side
    1,128,305.51x = 993,817,171,020.53
  5. Step 5: Solve for x
    x = 993,817,171,020.53/1,128,305.51
  6. Step 6: Final answer
    x = 880,805.03

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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.