Home / 885,346.80-1,328,711.40-412,090.80

Finding the Fourth Proportional to 885,346.80, 1,328,711.40 and 412,090.80

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Solution

The fourth proportional to 885,346.80, 1,328,711.40 and 412,090.80 is: 618,457.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346.80 : 1,328,711.40 = 412,090.80 : x
  2. Step 2: Convert to fraction form
    885,346.80/1,328,711.40 = 412,090.80/x
  3. Step 3: Cross multiply
    885,346.80x = 1,328,711.40 × 412,090.80
  4. Step 4: Simplify right side
    885,346.80x = 547,549,743,795.12
  5. Step 5: Solve for x
    x = 547,549,743,795.12/885,346.80
  6. Step 6: Final answer
    x = 618,457.92

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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.