Home / 520,030.60-779,988.30-146,091.40

Finding the Fourth Proportional to 520,030.60, 779,988.30 and 146,091.40

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Solution

The fourth proportional to 520,030.60, 779,988.30 and 146,091.40 is: 219,120.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,030.60 : 779,988.30 = 146,091.40 : x
  2. Step 2: Convert to fraction form
    520,030.60/779,988.30 = 146,091.40/x
  3. Step 3: Cross multiply
    520,030.60x = 779,988.30 × 146,091.40
  4. Step 4: Simplify right side
    520,030.60x = 113,949,582,730.62
  5. Step 5: Solve for x
    x = 113,949,582,730.62/520,030.60
  6. Step 6: Final answer
    x = 219,120.92

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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.