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Finding the Fourth Proportional to 578,762.64, 798,648.12 and 324,079.20

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Solution

The fourth proportional to 578,762.64, 798,648.12 and 324,079.20 is: 447,204.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,762.64 : 798,648.12 = 324,079.20 : x
  2. Step 2: Convert to fraction form
    578,762.64/798,648.12 = 324,079.20/x
  3. Step 3: Cross multiply
    578,762.64x = 798,648.12 × 324,079.20
  4. Step 4: Simplify right side
    578,762.64x = 258,825,243,811.10
  5. Step 5: Solve for x
    x = 258,825,243,811.10/578,762.64
  6. Step 6: Final answer
    x = 447,204.48

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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.