Home / 1,640,178.20-2,460,267.30-576,421.40

Finding the Fourth Proportional to 1,640,178.20, 2,460,267.30 and 576,421.40

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Solution

The fourth proportional to 1,640,178.20, 2,460,267.30 and 576,421.40 is: 864,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,178.20 : 2,460,267.30 = 576,421.40 : x
  2. Step 2: Convert to fraction form
    1,640,178.20/2,460,267.30 = 576,421.40/x
  3. Step 3: Cross multiply
    1,640,178.20x = 2,460,267.30 × 576,421.40
  4. Step 4: Simplify right side
    1,640,178.20x = 1,418,150,721,440.22
  5. Step 5: Solve for x
    x = 1,418,150,721,440.22/1,640,178.20
  6. Step 6: Final answer
    x = 864,632.10

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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.