Home / 1,078,948.80-1,619,006.40-480,002.40

Finding the Fourth Proportional to 1,078,948.80, 1,619,006.40 and 480,002.40

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Solution

The fourth proportional to 1,078,948.80, 1,619,006.40 and 480,002.40 is: 720,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,948.80 : 1,619,006.40 = 480,002.40 : x
  2. Step 2: Convert to fraction form
    1,078,948.80/1,619,006.40 = 480,002.40/x
  3. Step 3: Cross multiply
    1,078,948.80x = 1,619,006.40 × 480,002.40
  4. Step 4: Simplify right side
    1,078,948.80x = 777,126,957,615.36
  5. Step 5: Solve for x
    x = 777,126,957,615.36/1,078,948.80
  6. Step 6: Final answer
    x = 720,263.05

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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.