Home / 706,293-974,468.88-400,320.36

Finding the Fourth Proportional to 706,293, 974,468.88 and 400,320.36

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Solution

The fourth proportional to 706,293, 974,468.88 and 400,320.36 is: 552,319.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,293 : 974,468.88 = 400,320.36 : x
  2. Step 2: Convert to fraction form
    706,293/974,468.88 = 400,320.36/x
  3. Step 3: Cross multiply
    706,293x = 974,468.88 × 400,320.36
  4. Step 4: Simplify right side
    706,293x = 390,099,732,850.40
  5. Step 5: Solve for x
    x = 390,099,732,850.40/706,293
  6. Step 6: Final answer
    x = 552,319.98

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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.