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Finding the Fourth Proportional to 565,797.40, 780,785.65 and 336,355.13

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Solution

The fourth proportional to 565,797.40, 780,785.65 and 336,355.13 is: 464,161.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,797.40 : 780,785.65 = 336,355.13 : x
  2. Step 2: Convert to fraction form
    565,797.40/780,785.65 = 336,355.13/x
  3. Step 3: Cross multiply
    565,797.40x = 780,785.65 × 336,355.13
  4. Step 4: Simplify right side
    565,797.40x = 262,621,262,126.29
  5. Step 5: Solve for x
    x = 262,621,262,126.29/565,797.40
  6. Step 6: Final answer
    x = 464,161.31

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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.