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Finding the Fourth Proportional to 526,908.60, 788,030.10 and 442,927.80

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Solution

The fourth proportional to 526,908.60, 788,030.10 and 442,927.80 is: 662,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,908.60 : 788,030.10 = 442,927.80 : x
  2. Step 2: Convert to fraction form
    526,908.60/788,030.10 = 442,927.80/x
  3. Step 3: Cross multiply
    526,908.60x = 788,030.10 × 442,927.80
  4. Step 4: Simplify right side
    526,908.60x = 349,040,438,526.78
  5. Step 5: Solve for x
    x = 349,040,438,526.78/526,908.60
  6. Step 6: Final answer
    x = 662,430.71

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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.