Home / 457,835.40-686,753.10-432,030.60

Finding the Fourth Proportional to 457,835.40, 686,753.10 and 432,030.60

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Solution

The fourth proportional to 457,835.40, 686,753.10 and 432,030.60 is: 648,045.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,835.40 : 686,753.10 = 432,030.60 : x
  2. Step 2: Convert to fraction form
    457,835.40/686,753.10 = 432,030.60/x
  3. Step 3: Cross multiply
    457,835.40x = 686,753.10 × 432,030.60
  4. Step 4: Simplify right side
    457,835.40x = 296,698,353,844.86
  5. Step 5: Solve for x
    x = 296,698,353,844.86/457,835.40
  6. Step 6: Final answer
    x = 648,045.90

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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.