Home / 519,264.60-778,839.30-145,325.40

Finding the Fourth Proportional to 519,264.60, 778,839.30 and 145,325.40

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Solution

The fourth proportional to 519,264.60, 778,839.30 and 145,325.40 is: 217,971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,264.60 : 778,839.30 = 145,325.40 : x
  2. Step 2: Convert to fraction form
    519,264.60/778,839.30 = 145,325.40/x
  3. Step 3: Cross multiply
    519,264.60x = 778,839.30 × 145,325.40
  4. Step 4: Simplify right side
    519,264.60x = 113,185,132,808.22
  5. Step 5: Solve for x
    x = 113,185,132,808.22/519,264.60
  6. Step 6: Final answer
    x = 217,971.98

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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.