Home / 1,018,445.96-1,405,432.82-553,287.80

Finding the Fourth Proportional to 1,018,445.96, 1,405,432.82 and 553,287.80

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Solution

The fourth proportional to 1,018,445.96, 1,405,432.82 and 553,287.80 is: 763,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,445.96 : 1,405,432.82 = 553,287.80 : x
  2. Step 2: Convert to fraction form
    1,018,445.96/1,405,432.82 = 553,287.80/x
  3. Step 3: Cross multiply
    1,018,445.96x = 1,405,432.82 × 553,287.80
  4. Step 4: Simplify right side
    1,018,445.96x = 777,608,837,922.40
  5. Step 5: Solve for x
    x = 777,608,837,922.40/1,018,445.96
  6. Step 6: Final answer
    x = 763,524.89

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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.