Home / 845,830.90-1,268,430.16-340,221.02

Finding the Fourth Proportional to 845,830.90, 1,268,430.16 and 340,221.02

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Solution

The fourth proportional to 845,830.90, 1,268,430.16 and 340,221.02 is: 510,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,830.90 : 1,268,430.16 = 340,221.02 : x
  2. Step 2: Convert to fraction form
    845,830.90/1,268,430.16 = 340,221.02/x
  3. Step 3: Cross multiply
    845,830.90x = 1,268,430.16 × 340,221.02
  4. Step 4: Simplify right side
    845,830.90x = 431,546,602,833.96
  5. Step 5: Solve for x
    x = 431,546,602,833.96/845,830.90
  6. Step 6: Final answer
    x = 510,204.35

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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.