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Finding the Fourth Proportional to 571,145.20, 854,874.60 and 526,908.40

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Solution

The fourth proportional to 571,145.20, 854,874.60 and 526,908.40 is: 788,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,145.20 : 854,874.60 = 526,908.40 : x
  2. Step 2: Convert to fraction form
    571,145.20/854,874.60 = 526,908.40/x
  3. Step 3: Cross multiply
    571,145.20x = 854,874.60 × 526,908.40
  4. Step 4: Simplify right side
    571,145.20x = 450,440,607,686.64
  5. Step 5: Solve for x
    x = 450,440,607,686.64/571,145.20
  6. Step 6: Final answer
    x = 788,662.16

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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.