Home / 900,343.45-1,242,608.75-560,921.05

Finding the Fourth Proportional to 900,343.45, 1,242,608.75 and 560,921.05

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Solution

The fourth proportional to 900,343.45, 1,242,608.75 and 560,921.05 is: 774,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,343.45 : 1,242,608.75 = 560,921.05 : x
  2. Step 2: Convert to fraction form
    900,343.45/1,242,608.75 = 560,921.05/x
  3. Step 3: Cross multiply
    900,343.45x = 1,242,608.75 × 560,921.05
  4. Step 4: Simplify right side
    900,343.45x = 697,005,401,984.58
  5. Step 5: Solve for x
    x = 697,005,401,984.58/900,343.45
  6. Step 6: Final answer
    x = 774,155.02

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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.