Home / 712,355.80-1,066,837.50-412,203.88

Finding the Fourth Proportional to 712,355.80, 1,066,837.50 and 412,203.88

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Solution

The fourth proportional to 712,355.80, 1,066,837.50 and 412,203.88 is: 617,324.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,355.80 : 1,066,837.50 = 412,203.88 : x
  2. Step 2: Convert to fraction form
    712,355.80/1,066,837.50 = 412,203.88/x
  3. Step 3: Cross multiply
    712,355.80x = 1,066,837.50 × 412,203.88
  4. Step 4: Simplify right side
    712,355.80x = 439,754,556,829.50
  5. Step 5: Solve for x
    x = 439,754,556,829.50/712,355.80
  6. Step 6: Final answer
    x = 617,324.32

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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.