Home / 1,528,383.52-2,109,173.86-840,125.91

Finding the Fourth Proportional to 1,528,383.52, 2,109,173.86 and 840,125.91

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Solution

The fourth proportional to 1,528,383.52, 2,109,173.86 and 840,125.91 is: 1,159,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,383.52 : 2,109,173.86 = 840,125.91 : x
  2. Step 2: Convert to fraction form
    1,528,383.52/2,109,173.86 = 840,125.91/x
  3. Step 3: Cross multiply
    1,528,383.52x = 2,109,173.86 × 840,125.91
  4. Step 4: Simplify right side
    1,528,383.52x = 1,771,971,612,111.39
  5. Step 5: Solve for x
    x = 1,771,971,612,111.39/1,528,383.52
  6. Step 6: Final answer
    x = 1,159,376.29

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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.