Home / 900,904.96-1,243,249.32-561,374.56

Finding the Fourth Proportional to 900,904.96, 1,243,249.32 and 561,374.56

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Solution

The fourth proportional to 900,904.96, 1,243,249.32 and 561,374.56 is: 774,697.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,904.96 : 1,243,249.32 = 561,374.56 : x
  2. Step 2: Convert to fraction form
    900,904.96/1,243,249.32 = 561,374.56/x
  3. Step 3: Cross multiply
    900,904.96x = 1,243,249.32 × 561,374.56
  4. Step 4: Simplify right side
    900,904.96x = 697,928,539,985.30
  5. Step 5: Solve for x
    x = 697,928,539,985.30/900,904.96
  6. Step 6: Final answer
    x = 774,697.19

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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.