Home / 1,281,197.08-1,923,125.36-742,505.86

Finding the Fourth Proportional to 1,281,197.08, 1,923,125.36 and 742,505.86

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Solution

The fourth proportional to 1,281,197.08, 1,923,125.36 and 742,505.86 is: 1,114,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,197.08 : 1,923,125.36 = 742,505.86 : x
  2. Step 2: Convert to fraction form
    1,281,197.08/1,923,125.36 = 742,505.86/x
  3. Step 3: Cross multiply
    1,281,197.08x = 1,923,125.36 × 742,505.86
  4. Step 4: Simplify right side
    1,281,197.08x = 1,427,931,849,314.61
  5. Step 5: Solve for x
    x = 1,427,931,849,314.61/1,281,197.08
  6. Step 6: Final answer
    x = 1,114,529.43

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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.