Home / 698,657.30-1,048,245.46-485,312.82

Finding the Fourth Proportional to 698,657.30, 1,048,245.46 and 485,312.82

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Solution

The fourth proportional to 698,657.30, 1,048,245.46 and 485,312.82 is: 728,149.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,657.30 : 1,048,245.46 = 485,312.82 : x
  2. Step 2: Convert to fraction form
    698,657.30/1,048,245.46 = 485,312.82/x
  3. Step 3: Cross multiply
    698,657.30x = 1,048,245.46 × 485,312.82
  4. Step 4: Simplify right side
    698,657.30x = 508,726,960,244.80
  5. Step 5: Solve for x
    x = 508,726,960,244.80/698,657.30
  6. Step 6: Final answer
    x = 728,149.50

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Double scale
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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.