Home / 457,098.04-686,089.32-220,607.20

Finding the Fourth Proportional to 457,098.04, 686,089.32 and 220,607.20

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Solution

The fourth proportional to 457,098.04, 686,089.32 and 220,607.20 is: 331,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,098.04 : 686,089.32 = 220,607.20 : x
  2. Step 2: Convert to fraction form
    457,098.04/686,089.32 = 220,607.20/x
  3. Step 3: Cross multiply
    457,098.04x = 686,089.32 × 220,607.20
  4. Step 4: Simplify right side
    457,098.04x = 151,356,243,835.10
  5. Step 5: Solve for x
    x = 151,356,243,835.10/457,098.04
  6. Step 6: Final answer
    x = 331,124.25

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1.5x scale

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.