Home / 845,463.90-1,267,827.20-319,783.26

Finding the Fourth Proportional to 845,463.90, 1,267,827.20 and 319,783.26

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Solution

The fourth proportional to 845,463.90, 1,267,827.20 and 319,783.26 is: 479,535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,463.90 : 1,267,827.20 = 319,783.26 : x
  2. Step 2: Convert to fraction form
    845,463.90/1,267,827.20 = 319,783.26/x
  3. Step 3: Cross multiply
    845,463.90x = 1,267,827.20 × 319,783.26
  4. Step 4: Simplify right side
    845,463.90x = 405,429,915,132.67
  5. Step 5: Solve for x
    x = 405,429,915,132.67/845,463.90
  6. Step 6: Final answer
    x = 479,535.45

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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.