Home / 876,999.90-1,315,845.45-344,430.30

Finding the Fourth Proportional to 876,999.90, 1,315,845.45 and 344,430.30

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Solution

The fourth proportional to 876,999.90, 1,315,845.45 and 344,430.30 is: 516,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,999.90 : 1,315,845.45 = 344,430.30 : x
  2. Step 2: Convert to fraction form
    876,999.90/1,315,845.45 = 344,430.30/x
  3. Step 3: Cross multiply
    876,999.90x = 1,315,845.45 × 344,430.30
  4. Step 4: Simplify right side
    876,999.90x = 453,217,043,097.14
  5. Step 5: Solve for x
    x = 453,217,043,097.14/876,999.90
  6. Step 6: Final answer
    x = 516,781.18

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1.5x scale

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.