Home / 452,569.50-678,941.64-172,064.88

Finding the Fourth Proportional to 452,569.50, 678,941.64 and 172,064.88

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Solution

The fourth proportional to 452,569.50, 678,941.64 and 172,064.88 is: 258,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,569.50 : 678,941.64 = 172,064.88 : x
  2. Step 2: Convert to fraction form
    452,569.50/678,941.64 = 172,064.88/x
  3. Step 3: Cross multiply
    452,569.50x = 678,941.64 × 172,064.88
  4. Step 4: Simplify right side
    452,569.50x = 116,822,011,813.60
  5. Step 5: Solve for x
    x = 116,822,011,813.60/452,569.50
  6. Step 6: Final answer
    x = 258,130.55

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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.