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Finding the Fourth Proportional to 619,911.32, 930,225.70 and 260,049.92

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Solution

The fourth proportional to 619,911.32, 930,225.70 and 260,049.92 is: 390,225.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,911.32 : 930,225.70 = 260,049.92 : x
  2. Step 2: Convert to fraction form
    619,911.32/930,225.70 = 260,049.92/x
  3. Step 3: Cross multiply
    619,911.32x = 930,225.70 × 260,049.92
  4. Step 4: Simplify right side
    619,911.32x = 241,905,118,866.94
  5. Step 5: Solve for x
    x = 241,905,118,866.94/619,911.32
  6. Step 6: Final answer
    x = 390,225.36

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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.