Home / 319,534.83-442,822.16-315,024.75

Finding the Fourth Proportional to 319,534.83, 442,822.16 and 315,024.75

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Solution

The fourth proportional to 319,534.83, 442,822.16 and 315,024.75 is: 436,571.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,534.83 : 442,822.16 = 315,024.75 : x
  2. Step 2: Convert to fraction form
    319,534.83/442,822.16 = 315,024.75/x
  3. Step 3: Cross multiply
    319,534.83x = 442,822.16 × 315,024.75
  4. Step 4: Simplify right side
    319,534.83x = 139,499,941,036.02
  5. Step 5: Solve for x
    x = 139,499,941,036.02/319,534.83
  6. Step 6: Final answer
    x = 436,571.94

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.