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Finding the Fourth Proportional to 706,727.45, 975,279.06 and 400,863.35

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Solution

The fourth proportional to 706,727.45, 975,279.06 and 400,863.35 is: 553,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,727.45 : 975,279.06 = 400,863.35 : x
  2. Step 2: Convert to fraction form
    706,727.45/975,279.06 = 400,863.35/x
  3. Step 3: Cross multiply
    706,727.45x = 975,279.06 × 400,863.35
  4. Step 4: Simplify right side
    706,727.45x = 390,953,631,176.45
  5. Step 5: Solve for x
    x = 390,953,631,176.45/706,727.45
  6. Step 6: Final answer
    x = 553,188.69

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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.