Home / 1,209,742.40-1,814,613.60-411,924.80

Finding the Fourth Proportional to 1,209,742.40, 1,814,613.60 and 411,924.80

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Solution

The fourth proportional to 1,209,742.40, 1,814,613.60 and 411,924.80 is: 617,887.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,742.40 : 1,814,613.60 = 411,924.80 : x
  2. Step 2: Convert to fraction form
    1,209,742.40/1,814,613.60 = 411,924.80/x
  3. Step 3: Cross multiply
    1,209,742.40x = 1,814,613.60 × 411,924.80
  4. Step 4: Simplify right side
    1,209,742.40x = 747,484,344,257.28
  5. Step 5: Solve for x
    x = 747,484,344,257.28/1,209,742.40
  6. Step 6: Final answer
    x = 617,887.20

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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.