Home / 319,534.08-442,821.09-315,024

Finding the Fourth Proportional to 319,534.08, 442,821.09 and 315,024

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Solution

The fourth proportional to 319,534.08, 442,821.09 and 315,024 is: 436,570.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,534.08 : 442,821.09 = 315,024 : x
  2. Step 2: Convert to fraction form
    319,534.08/442,821.09 = 315,024/x
  3. Step 3: Cross multiply
    319,534.08x = 442,821.09 × 315,024
  4. Step 4: Simplify right side
    319,534.08x = 139,499,271,056.16
  5. Step 5: Solve for x
    x = 139,499,271,056.16/319,534.08
  6. Step 6: Final answer
    x = 436,570.87

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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.