Home / 452,217.04-678,421.60-171,728.08

Finding the Fourth Proportional to 452,217.04, 678,421.60 and 171,728.08

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Solution

The fourth proportional to 452,217.04, 678,421.60 and 171,728.08 is: 257,628.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,217.04 : 678,421.60 = 171,728.08 : x
  2. Step 2: Convert to fraction form
    452,217.04/678,421.60 = 171,728.08/x
  3. Step 3: Cross multiply
    452,217.04x = 678,421.60 × 171,728.08
  4. Step 4: Simplify right side
    452,217.04x = 116,504,038,798.53
  5. Step 5: Solve for x
    x = 116,504,038,798.53/452,217.04
  6. Step 6: Final answer
    x = 257,628.59

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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.