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Finding the Fourth Proportional to 598,756.80, 898,135.20 and 559,099.20

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Solution

The fourth proportional to 598,756.80, 898,135.20 and 559,099.20 is: 838,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,756.80 : 898,135.20 = 559,099.20 : x
  2. Step 2: Convert to fraction form
    598,756.80/898,135.20 = 559,099.20/x
  3. Step 3: Cross multiply
    598,756.80x = 898,135.20 × 559,099.20
  4. Step 4: Simplify right side
    598,756.80x = 502,146,671,811.84
  5. Step 5: Solve for x
    x = 502,146,671,811.84/598,756.80
  6. Step 6: Final answer
    x = 838,648.80

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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.