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Finding the Fourth Proportional to 693,206.48, 956,612.76 and 387,263

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Solution

The fourth proportional to 693,206.48, 956,612.76 and 387,263 is: 534,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,206.48 : 956,612.76 = 387,263 : x
  2. Step 2: Convert to fraction form
    693,206.48/956,612.76 = 387,263/x
  3. Step 3: Cross multiply
    693,206.48x = 956,612.76 × 387,263
  4. Step 4: Simplify right side
    693,206.48x = 370,460,727,275.88
  5. Step 5: Solve for x
    x = 370,460,727,275.88/693,206.48
  6. Step 6: Final answer
    x = 534,416.13

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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.