Home / 3,178,652.51-4,386,509.99-1,728,348.45

Finding the Fourth Proportional to 3,178,652.51, 4,386,509.99 and 1,728,348.45

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Solution

The fourth proportional to 3,178,652.51, 4,386,509.99 and 1,728,348.45 is: 2,385,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,652.51 : 4,386,509.99 = 1,728,348.45 : x
  2. Step 2: Convert to fraction form
    3,178,652.51/4,386,509.99 = 1,728,348.45/x
  3. Step 3: Cross multiply
    3,178,652.51x = 4,386,509.99 × 1,728,348.45
  4. Step 4: Simplify right side
    3,178,652.51x = 7,581,417,733,484.27
  5. Step 5: Solve for x
    x = 7,581,417,733,484.27/3,178,652.51
  6. Step 6: Final answer
    x = 2,385,104.29

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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.