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Finding the Fourth Proportional to 659,429.70, 989,144.55 and 598,412.40

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Solution

The fourth proportional to 659,429.70, 989,144.55 and 598,412.40 is: 897,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,429.70 : 989,144.55 = 598,412.40 : x
  2. Step 2: Convert to fraction form
    659,429.70/989,144.55 = 598,412.40/x
  3. Step 3: Cross multiply
    659,429.70x = 989,144.55 × 598,412.40
  4. Step 4: Simplify right side
    659,429.70x = 591,916,364,112.42
  5. Step 5: Solve for x
    x = 591,916,364,112.42/659,429.70
  6. Step 6: Final answer
    x = 897,618.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.