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Finding the Fourth Proportional to 542,040.40, 811,505.40 and 526,488.40

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Solution

The fourth proportional to 542,040.40, 811,505.40 and 526,488.40 is: 788,222.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,040.40 : 811,505.40 = 526,488.40 : x
  2. Step 2: Convert to fraction form
    542,040.40/811,505.40 = 526,488.40/x
  3. Step 3: Cross multiply
    542,040.40x = 811,505.40 × 526,488.40
  4. Step 4: Simplify right side
    542,040.40x = 427,248,179,637.36
  5. Step 5: Solve for x
    x = 427,248,179,637.36/542,040.40
  6. Step 6: Final answer
    x = 788,222.02

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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.