Home / 811,017.54-1,119,106.53-448,392.42

Finding the Fourth Proportional to 811,017.54, 1,119,106.53 and 448,392.42

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Solution

The fourth proportional to 811,017.54, 1,119,106.53 and 448,392.42 is: 618,727.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,017.54 : 1,119,106.53 = 448,392.42 : x
  2. Step 2: Convert to fraction form
    811,017.54/1,119,106.53 = 448,392.42/x
  3. Step 3: Cross multiply
    811,017.54x = 1,119,106.53 × 448,392.42
  4. Step 4: Simplify right side
    811,017.54x = 501,798,885,224.50
  5. Step 5: Solve for x
    x = 501,798,885,224.50/811,017.54
  6. Step 6: Final answer
    x = 618,727.54

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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.