Home / 663,038.10-993,536.55-493,764.30

Finding the Fourth Proportional to 663,038.10, 993,536.55 and 493,764.30

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Solution

The fourth proportional to 663,038.10, 993,536.55 and 493,764.30 is: 739,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,038.10 : 993,536.55 = 493,764.30 : x
  2. Step 2: Convert to fraction form
    663,038.10/993,536.55 = 493,764.30/x
  3. Step 3: Cross multiply
    663,038.10x = 993,536.55 × 493,764.30
  4. Step 4: Simplify right side
    663,038.10x = 490,572,879,135.17
  5. Step 5: Solve for x
    x = 490,572,879,135.17/663,038.10
  6. Step 6: Final answer
    x = 739,886.41

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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.