Home / 3,178,837.09-4,386,818.04-1,728,522.16

Finding the Fourth Proportional to 3,178,837.09, 4,386,818.04 and 1,728,522.16

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Solution

The fourth proportional to 3,178,837.09, 4,386,818.04 and 1,728,522.16 is: 2,385,373.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,837.09 : 4,386,818.04 = 1,728,522.16 : x
  2. Step 2: Convert to fraction form
    3,178,837.09/4,386,818.04 = 1,728,522.16/x
  3. Step 3: Cross multiply
    3,178,837.09x = 4,386,818.04 × 1,728,522.16
  4. Step 4: Simplify right side
    3,178,837.09x = 7,582,712,194,027.77
  5. Step 5: Solve for x
    x = 7,582,712,194,027.77/3,178,837.09
  6. Step 6: Final answer
    x = 2,385,373.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.