Home / 988,020.72-1,363,468.73-535,311.72

Finding the Fourth Proportional to 988,020.72, 1,363,468.73 and 535,311.72

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Solution

The fourth proportional to 988,020.72, 1,363,468.73 and 535,311.72 is: 738,730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,020.72 : 1,363,468.73 = 535,311.72 : x
  2. Step 2: Convert to fraction form
    988,020.72/1,363,468.73 = 535,311.72/x
  3. Step 3: Cross multiply
    988,020.72x = 1,363,468.73 × 535,311.72
  4. Step 4: Simplify right side
    988,020.72x = 729,880,785,543.45
  5. Step 5: Solve for x
    x = 729,880,785,543.45/988,020.72
  6. Step 6: Final answer
    x = 738,730.25

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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.