Home / 565,631.94-780,552.12-310,981.17

Finding the Fourth Proportional to 565,631.94, 780,552.12 and 310,981.17

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Solution

The fourth proportional to 565,631.94, 780,552.12 and 310,981.17 is: 429,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,631.94 : 780,552.12 = 310,981.17 : x
  2. Step 2: Convert to fraction form
    565,631.94/780,552.12 = 310,981.17/x
  3. Step 3: Cross multiply
    565,631.94x = 780,552.12 × 310,981.17
  4. Step 4: Simplify right side
    565,631.94x = 242,737,011,523.58
  5. Step 5: Solve for x
    x = 242,737,011,523.58/565,631.94
  6. Step 6: Final answer
    x = 429,143.04

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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.