Home / 550,025.07-759,069.66-308,307.69

Finding the Fourth Proportional to 550,025.07, 759,069.66 and 308,307.69

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Solution

The fourth proportional to 550,025.07, 759,069.66 and 308,307.69 is: 425,484.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,025.07 : 759,069.66 = 308,307.69 : x
  2. Step 2: Convert to fraction form
    550,025.07/759,069.66 = 308,307.69/x
  3. Step 3: Cross multiply
    550,025.07x = 759,069.66 × 308,307.69
  4. Step 4: Simplify right side
    550,025.07x = 234,027,013,423.69
  5. Step 5: Solve for x
    x = 234,027,013,423.69/550,025.07
  6. Step 6: Final answer
    x = 425,484.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.