Home / 1,424,421.60-2,138,014.80-715,250.40

Finding the Fourth Proportional to 1,424,421.60, 2,138,014.80 and 715,250.40

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Solution

The fourth proportional to 1,424,421.60, 2,138,014.80 and 715,250.40 is: 1,073,569.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,421.60 : 2,138,014.80 = 715,250.40 : x
  2. Step 2: Convert to fraction form
    1,424,421.60/2,138,014.80 = 715,250.40/x
  3. Step 3: Cross multiply
    1,424,421.60x = 2,138,014.80 × 715,250.40
  4. Step 4: Simplify right side
    1,424,421.60x = 1,529,215,940,905.92
  5. Step 5: Solve for x
    x = 1,529,215,940,905.92/1,424,421.60
  6. Step 6: Final answer
    x = 1,073,569.75

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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.