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Finding the Fourth Proportional to 518,852.20, 776,723.10 and 456,644.20

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Solution

The fourth proportional to 518,852.20, 776,723.10 and 456,644.20 is: 683,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,852.20 : 776,723.10 = 456,644.20 : x
  2. Step 2: Convert to fraction form
    518,852.20/776,723.10 = 456,644.20/x
  3. Step 3: Cross multiply
    518,852.20x = 776,723.10 × 456,644.20
  4. Step 4: Simplify right side
    518,852.20x = 354,686,098,621.02
  5. Step 5: Solve for x
    x = 354,686,098,621.02/518,852.20
  6. Step 6: Final answer
    x = 683,597.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.