Home / 499,280.90-689,007.60-272,926.40

Finding the Fourth Proportional to 499,280.90, 689,007.60 and 272,926.40

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Solution

The fourth proportional to 499,280.90, 689,007.60 and 272,926.40 is: 376,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,280.90 : 689,007.60 = 272,926.40 : x
  2. Step 2: Convert to fraction form
    499,280.90/689,007.60 = 272,926.40/x
  3. Step 3: Cross multiply
    499,280.90x = 689,007.60 × 272,926.40
  4. Step 4: Simplify right side
    499,280.90x = 188,048,363,840.64
  5. Step 5: Solve for x
    x = 188,048,363,840.64/499,280.90
  6. Step 6: Final answer
    x = 376,638.41

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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.