Home / 1,349,514.40-2,021,938.80-638,010.40

Finding the Fourth Proportional to 1,349,514.40, 2,021,938.80 and 638,010.40

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Solution

The fourth proportional to 1,349,514.40, 2,021,938.80 and 638,010.40 is: 955,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,514.40 : 2,021,938.80 = 638,010.40 : x
  2. Step 2: Convert to fraction form
    1,349,514.40/2,021,938.80 = 638,010.40/x
  3. Step 3: Cross multiply
    1,349,514.40x = 2,021,938.80 × 638,010.40
  4. Step 4: Simplify right side
    1,349,514.40x = 1,290,017,982,563.52
  5. Step 5: Solve for x
    x = 1,290,017,982,563.52/1,349,514.40
  6. Step 6: Final answer
    x = 955,912.72

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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.