Home / 1,145,390.40-1,717,567.20-513,979.20

Finding the Fourth Proportional to 1,145,390.40, 1,717,567.20 and 513,979.20

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Solution

The fourth proportional to 1,145,390.40, 1,717,567.20 and 513,979.20 is: 770,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,390.40 : 1,717,567.20 = 513,979.20 : x
  2. Step 2: Convert to fraction form
    1,145,390.40/1,717,567.20 = 513,979.20/x
  3. Step 3: Cross multiply
    1,145,390.40x = 1,717,567.20 × 513,979.20
  4. Step 4: Simplify right side
    1,145,390.40x = 882,793,815,402.24
  5. Step 5: Solve for x
    x = 882,793,815,402.24/1,145,390.40
  6. Step 6: Final answer
    x = 770,736.17

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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.