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Finding the Fourth Proportional to 579,745.70, 869,186.55 and 299,464.10

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Solution

The fourth proportional to 579,745.70, 869,186.55 and 299,464.10 is: 448,973.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,745.70 : 869,186.55 = 299,464.10 : x
  2. Step 2: Convert to fraction form
    579,745.70/869,186.55 = 299,464.10/x
  3. Step 3: Cross multiply
    579,745.70x = 869,186.55 × 299,464.10
  4. Step 4: Simplify right side
    579,745.70x = 260,290,167,927.86
  5. Step 5: Solve for x
    x = 260,290,167,927.86/579,745.70
  6. Step 6: Final answer
    x = 448,973.00

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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.