Home / 900,900.96-1,243,243.80-561,370.56

Finding the Fourth Proportional to 900,900.96, 1,243,243.80 and 561,370.56

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Solution

The fourth proportional to 900,900.96, 1,243,243.80 and 561,370.56 is: 774,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,900.96 : 1,243,243.80 = 561,370.56 : x
  2. Step 2: Convert to fraction form
    900,900.96/1,243,243.80 = 561,370.56/x
  3. Step 3: Cross multiply
    900,900.96x = 1,243,243.80 × 561,370.56
  4. Step 4: Simplify right side
    900,900.96x = 697,920,468,222.53
  5. Step 5: Solve for x
    x = 697,920,468,222.53/900,900.96
  6. Step 6: Final answer
    x = 774,691.67

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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.