Home / 1,092,660.48-1,638,988.80-427,345.92

Finding the Fourth Proportional to 1,092,660.48, 1,638,988.80 and 427,345.92

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Solution

The fourth proportional to 1,092,660.48, 1,638,988.80 and 427,345.92 is: 641,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,660.48 : 1,638,988.80 = 427,345.92 : x
  2. Step 2: Convert to fraction form
    1,092,660.48/1,638,988.80 = 427,345.92/x
  3. Step 3: Cross multiply
    1,092,660.48x = 1,638,988.80 × 427,345.92
  4. Step 4: Simplify right side
    1,092,660.48x = 700,415,176,605.70
  5. Step 5: Solve for x
    x = 700,415,176,605.70/1,092,660.48
  6. Step 6: Final answer
    x = 641,018.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.