Home / 811,019.04-1,119,108.60-448,393.92

Finding the Fourth Proportional to 811,019.04, 1,119,108.60 and 448,393.92

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Solution

The fourth proportional to 811,019.04, 1,119,108.60 and 448,393.92 is: 618,729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,019.04 : 1,119,108.60 = 448,393.92 : x
  2. Step 2: Convert to fraction form
    811,019.04/1,119,108.60 = 448,393.92/x
  3. Step 3: Cross multiply
    811,019.04x = 1,119,108.60 × 448,393.92
  4. Step 4: Simplify right side
    811,019.04x = 501,801,492,059.71
  5. Step 5: Solve for x
    x = 501,801,492,059.71/811,019.04
  6. Step 6: Final answer
    x = 618,729.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.