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Finding the Fourth Proportional to 648,362.19, 894,703.35 and 361,900.70

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Solution

The fourth proportional to 648,362.19, 894,703.35 and 361,900.70 is: 499,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,362.19 : 894,703.35 = 361,900.70 : x
  2. Step 2: Convert to fraction form
    648,362.19/894,703.35 = 361,900.70/x
  3. Step 3: Cross multiply
    648,362.19x = 894,703.35 × 361,900.70
  4. Step 4: Simplify right side
    648,362.19x = 323,793,768,657.35
  5. Step 5: Solve for x
    x = 323,793,768,657.35/648,362.19
  6. Step 6: Final answer
    x = 499,402.61

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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.