Home / 1,128,345.78-1,557,144.54-619,048.16

Finding the Fourth Proportional to 1,128,345.78, 1,557,144.54 and 619,048.16

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Solution

The fourth proportional to 1,128,345.78, 1,557,144.54 and 619,048.16 is: 854,301.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,345.78 : 1,557,144.54 = 619,048.16 : x
  2. Step 2: Convert to fraction form
    1,128,345.78/1,557,144.54 = 619,048.16/x
  3. Step 3: Cross multiply
    1,128,345.78x = 1,557,144.54 × 619,048.16
  4. Step 4: Simplify right side
    1,128,345.78x = 963,947,462,341.05
  5. Step 5: Solve for x
    x = 963,947,462,341.05/1,128,345.78
  6. Step 6: Final answer
    x = 854,301.47

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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.