Home / 1,125,921.02-1,553,881.93-642,558.92

Finding the Fourth Proportional to 1,125,921.02, 1,553,881.93 and 642,558.92

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Solution

The fourth proportional to 1,125,921.02, 1,553,881.93 and 642,558.92 is: 886,794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,921.02 : 1,553,881.93 = 642,558.92 : x
  2. Step 2: Convert to fraction form
    1,125,921.02/1,553,881.93 = 642,558.92/x
  3. Step 3: Cross multiply
    1,125,921.02x = 1,553,881.93 × 642,558.92
  4. Step 4: Simplify right side
    1,125,921.02x = 998,460,685,372.51
  5. Step 5: Solve for x
    x = 998,460,685,372.51/1,125,921.02
  6. Step 6: Final answer
    x = 886,794.61

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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.