Home / 811,400.82-1,119,646.98-448,767.06

Finding the Fourth Proportional to 811,400.82, 1,119,646.98 and 448,767.06

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Solution

The fourth proportional to 811,400.82, 1,119,646.98 and 448,767.06 is: 619,250.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,400.82 : 1,119,646.98 = 448,767.06 : x
  2. Step 2: Convert to fraction form
    811,400.82/1,119,646.98 = 448,767.06/x
  3. Step 3: Cross multiply
    811,400.82x = 1,119,646.98 × 448,767.06
  4. Step 4: Simplify right side
    811,400.82x = 502,460,683,452.48
  5. Step 5: Solve for x
    x = 502,460,683,452.48/811,400.82
  6. Step 6: Final answer
    x = 619,250.89

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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.