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Finding the Fourth Proportional to 638,274.70, 957,412.05 and 598,908.70

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Solution

The fourth proportional to 638,274.70, 957,412.05 and 598,908.70 is: 898,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,274.70 : 957,412.05 = 598,908.70 : x
  2. Step 2: Convert to fraction form
    638,274.70/957,412.05 = 598,908.70/x
  3. Step 3: Cross multiply
    638,274.70x = 957,412.05 × 598,908.70
  4. Step 4: Simplify right side
    638,274.70x = 573,402,406,229.84
  5. Step 5: Solve for x
    x = 573,402,406,229.84/638,274.70
  6. Step 6: Final answer
    x = 898,363.05

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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.