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Finding the Fourth Proportional to 565,681.06, 780,527.70 and 317,330.98

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Solution

The fourth proportional to 565,681.06, 780,527.70 and 317,330.98 is: 437,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,681.06 : 780,527.70 = 317,330.98 : x
  2. Step 2: Convert to fraction form
    565,681.06/780,527.70 = 317,330.98/x
  3. Step 3: Cross multiply
    565,681.06x = 780,527.70 × 317,330.98
  4. Step 4: Simplify right side
    565,681.06x = 247,685,619,958.15
  5. Step 5: Solve for x
    x = 247,685,619,958.15/565,681.06
  6. Step 6: Final answer
    x = 437,853.83

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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.