Home / 1,128,487.44-1,557,312.58-645,062.94

Finding the Fourth Proportional to 1,128,487.44, 1,557,312.58 and 645,062.94

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Solution

The fourth proportional to 1,128,487.44, 1,557,312.58 and 645,062.94 is: 890,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,487.44 : 1,557,312.58 = 645,062.94 : x
  2. Step 2: Convert to fraction form
    1,128,487.44/1,557,312.58 = 645,062.94/x
  3. Step 3: Cross multiply
    1,128,487.44x = 1,557,312.58 × 645,062.94
  4. Step 4: Simplify right side
    1,128,487.44x = 1,004,564,632,160.11
  5. Step 5: Solve for x
    x = 1,004,564,632,160.11/1,128,487.44
  6. Step 6: Final answer
    x = 890,186.81

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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.