Home / 817,487.56-1,225,873.86-412,430.56

Finding the Fourth Proportional to 817,487.56, 1,225,873.86 and 412,430.56

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Solution

The fourth proportional to 817,487.56, 1,225,873.86 and 412,430.56 is: 618,465.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,487.56 : 1,225,873.86 = 412,430.56 : x
  2. Step 2: Convert to fraction form
    817,487.56/1,225,873.86 = 412,430.56/x
  3. Step 3: Cross multiply
    817,487.56x = 1,225,873.86 × 412,430.56
  4. Step 4: Simplify right side
    817,487.56x = 505,587,842,569.16
  5. Step 5: Solve for x
    x = 505,587,842,569.16/817,487.56
  6. Step 6: Final answer
    x = 618,465.49

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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.