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Finding the Fourth Proportional to 658,962.98, 909,369.70 and 357,156.98

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Solution

The fourth proportional to 658,962.98, 909,369.70 and 357,156.98 is: 492,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,962.98 : 909,369.70 = 357,156.98 : x
  2. Step 2: Convert to fraction form
    658,962.98/909,369.70 = 357,156.98/x
  3. Step 3: Cross multiply
    658,962.98x = 909,369.70 × 357,156.98
  4. Step 4: Simplify right side
    658,962.98x = 324,787,735,755.51
  5. Step 5: Solve for x
    x = 324,787,735,755.51/658,962.98
  6. Step 6: Final answer
    x = 492,877.06

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1.5x scale

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.