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Finding the Fourth Proportional to 548,451.66, 756,901.63 and 306,756.57

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Solution

The fourth proportional to 548,451.66, 756,901.63 and 306,756.57 is: 423,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,451.66 : 756,901.63 = 306,756.57 : x
  2. Step 2: Convert to fraction form
    548,451.66/756,901.63 = 306,756.57/x
  3. Step 3: Cross multiply
    548,451.66x = 756,901.63 × 306,756.57
  4. Step 4: Simplify right side
    548,451.66x = 232,184,547,846.21
  5. Step 5: Solve for x
    x = 232,184,547,846.21/548,451.66
  6. Step 6: Final answer
    x = 423,345.51

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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.