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Finding the Fourth Proportional to 663,514.36, 915,622.67 and 373,117.67

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Solution

The fourth proportional to 663,514.36, 915,622.67 and 373,117.67 is: 514,887.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,514.36 : 915,622.67 = 373,117.67 : x
  2. Step 2: Convert to fraction form
    663,514.36/915,622.67 = 373,117.67/x
  3. Step 3: Cross multiply
    663,514.36x = 915,622.67 × 373,117.67
  4. Step 4: Simplify right side
    663,514.36x = 341,634,995,363.99
  5. Step 5: Solve for x
    x = 341,634,995,363.99/663,514.36
  6. Step 6: Final answer
    x = 514,887.12

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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.