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Finding the Fourth Proportional to 706,395.74, 974,805.67 and 400,500.48

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Solution

The fourth proportional to 706,395.74, 974,805.67 and 400,500.48 is: 552,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,395.74 : 974,805.67 = 400,500.48 : x
  2. Step 2: Convert to fraction form
    706,395.74/974,805.67 = 400,500.48/x
  3. Step 3: Cross multiply
    706,395.74x = 974,805.67 × 400,500.48
  4. Step 4: Simplify right side
    706,395.74x = 390,410,142,897.87
  5. Step 5: Solve for x
    x = 390,410,142,897.87/706,395.74
  6. Step 6: Final answer
    x = 552,679.08

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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.