Home / 3,429,681.86-4,732,620-1,979,844.32

Finding the Fourth Proportional to 3,429,681.86, 4,732,620 and 1,979,844.32

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Solution

The fourth proportional to 3,429,681.86, 4,732,620 and 1,979,844.32 is: 2,731,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429,681.86 : 4,732,620 = 1,979,844.32 : x
  2. Step 2: Convert to fraction form
    3,429,681.86/4,732,620 = 1,979,844.32/x
  3. Step 3: Cross multiply
    3,429,681.86x = 4,732,620 × 1,979,844.32
  4. Step 4: Simplify right side
    3,429,681.86x = 9,369,850,825,718.40
  5. Step 5: Solve for x
    x = 9,369,850,825,718.40/3,429,681.86
  6. Step 6: Final answer
    x = 2,731,988.33

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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.