Home / 526,246.80-788,981.40-289,856.40

Finding the Fourth Proportional to 526,246.80, 788,981.40 and 289,856.40

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Solution

The fourth proportional to 526,246.80, 788,981.40 and 289,856.40 is: 434,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,246.80 : 788,981.40 = 289,856.40 : x
  2. Step 2: Convert to fraction form
    526,246.80/788,981.40 = 289,856.40/x
  3. Step 3: Cross multiply
    526,246.80x = 788,981.40 × 289,856.40
  4. Step 4: Simplify right side
    526,246.80x = 228,691,308,270.96
  5. Step 5: Solve for x
    x = 228,691,308,270.96/526,246.80
  6. Step 6: Final answer
    x = 434,570.45

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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.