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Finding the Fourth Proportional to 706,725.45, 975,276.30 and 400,861.35

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Solution

The fourth proportional to 706,725.45, 975,276.30 and 400,861.35 is: 553,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,725.45 : 975,276.30 = 400,861.35 : x
  2. Step 2: Convert to fraction form
    706,725.45/975,276.30 = 400,861.35/x
  3. Step 3: Cross multiply
    706,725.45x = 975,276.30 × 400,861.35
  4. Step 4: Simplify right side
    706,725.45x = 390,950,574,241.01
  5. Step 5: Solve for x
    x = 390,950,574,241.01/706,725.45
  6. Step 6: Final answer
    x = 553,185.93

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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.