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Finding the Fourth Proportional to 648,027.72, 894,323.16 and 361,603.62

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Solution

The fourth proportional to 648,027.72, 894,323.16 and 361,603.62 is: 499,038.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,027.72 : 894,323.16 = 361,603.62 : x
  2. Step 2: Convert to fraction form
    648,027.72/894,323.16 = 361,603.62/x
  3. Step 3: Cross multiply
    648,027.72x = 894,323.16 × 361,603.62
  4. Step 4: Simplify right side
    648,027.72x = 323,390,492,105.84
  5. Step 5: Solve for x
    x = 323,390,492,105.84/648,027.72
  6. Step 6: Final answer
    x = 499,038.05

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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.