Home / 1,128,661.72-1,557,598.08-619,382.32

Finding the Fourth Proportional to 1,128,661.72, 1,557,598.08 and 619,382.32

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Solution

The fourth proportional to 1,128,661.72, 1,557,598.08 and 619,382.32 is: 854,772.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,661.72 : 1,557,598.08 = 619,382.32 : x
  2. Step 2: Convert to fraction form
    1,128,661.72/1,557,598.08 = 619,382.32/x
  3. Step 3: Cross multiply
    1,128,661.72x = 1,557,598.08 × 619,382.32
  4. Step 4: Simplify right side
    1,128,661.72x = 964,748,712,417.95
  5. Step 5: Solve for x
    x = 964,748,712,417.95/1,128,661.72
  6. Step 6: Final answer
    x = 854,772.25

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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.