Home / 1,492,253.20-2,238,120.60-545,136.40

Finding the Fourth Proportional to 1,492,253.20, 2,238,120.60 and 545,136.40

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Solution

The fourth proportional to 1,492,253.20, 2,238,120.60 and 545,136.40 is: 817,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,253.20 : 2,238,120.60 = 545,136.40 : x
  2. Step 2: Convert to fraction form
    1,492,253.20/2,238,120.60 = 545,136.40/x
  3. Step 3: Cross multiply
    1,492,253.20x = 2,238,120.60 × 545,136.40
  4. Step 4: Simplify right side
    1,492,253.20x = 1,220,081,006,649.84
  5. Step 5: Solve for x
    x = 1,220,081,006,649.84/1,492,253.20
  6. Step 6: Final answer
    x = 817,609.91

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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.