Home / 2,119,008.64-3,178,441.56-920,931.08

Finding the Fourth Proportional to 2,119,008.64, 3,178,441.56 and 920,931.08

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Solution

The fourth proportional to 2,119,008.64, 3,178,441.56 and 920,931.08 is: 1,381,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,008.64 : 3,178,441.56 = 920,931.08 : x
  2. Step 2: Convert to fraction form
    2,119,008.64/3,178,441.56 = 920,931.08/x
  3. Step 3: Cross multiply
    2,119,008.64x = 3,178,441.56 × 920,931.08
  4. Step 4: Simplify right side
    2,119,008.64x = 2,927,125,618,567.68
  5. Step 5: Solve for x
    x = 2,927,125,618,567.68/2,119,008.64
  6. Step 6: Final answer
    x = 1,381,365.59

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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.