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Finding the Fourth Proportional to 565,853.36, 780,882.87 and 307,732.76

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Solution

The fourth proportional to 565,853.36, 780,882.87 and 307,732.76 is: 424,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,853.36 : 780,882.87 = 307,732.76 : x
  2. Step 2: Convert to fraction form
    565,853.36/780,882.87 = 307,732.76/x
  3. Step 3: Cross multiply
    565,853.36x = 780,882.87 × 307,732.76
  4. Step 4: Simplify right side
    565,853.36x = 240,303,240,821.82
  5. Step 5: Solve for x
    x = 240,303,240,821.82/565,853.36
  6. Step 6: Final answer
    x = 424,674.05

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1.5x scale

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.