Home / 1,345,550.90-2,018,423.55-447,617.30

Finding the Fourth Proportional to 1,345,550.90, 2,018,423.55 and 447,617.30

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Solution

The fourth proportional to 1,345,550.90, 2,018,423.55 and 447,617.30 is: 671,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,550.90 : 2,018,423.55 = 447,617.30 : x
  2. Step 2: Convert to fraction form
    1,345,550.90/2,018,423.55 = 447,617.30/x
  3. Step 3: Cross multiply
    1,345,550.90x = 2,018,423.55 × 447,617.30
  4. Step 4: Simplify right side
    1,345,550.90x = 903,481,299,707.42
  5. Step 5: Solve for x
    x = 903,481,299,707.42/1,345,550.90
  6. Step 6: Final answer
    x = 671,458.29

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Double scale
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1.5x scale

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.