Home / 437,811.40-656,717.10-280,347.40

Finding the Fourth Proportional to 437,811.40, 656,717.10 and 280,347.40

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Solution

The fourth proportional to 437,811.40, 656,717.10 and 280,347.40 is: 420,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,811.40 : 656,717.10 = 280,347.40 : x
  2. Step 2: Convert to fraction form
    437,811.40/656,717.10 = 280,347.40/x
  3. Step 3: Cross multiply
    437,811.40x = 656,717.10 × 280,347.40
  4. Step 4: Simplify right side
    437,811.40x = 184,108,931,520.54
  5. Step 5: Solve for x
    x = 184,108,931,520.54/437,811.40
  6. Step 6: Final answer
    x = 420,521.10

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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.