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Finding the Fourth Proportional to 1,377,216, 2,065,901.76 and 490,752

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Solution

The fourth proportional to 1,377,216, 2,065,901.76 and 490,752 is: 736,155.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,216 : 2,065,901.76 = 490,752 : x
  2. Step 2: Convert to fraction form
    1,377,216/2,065,901.76 = 490,752/x
  3. Step 3: Cross multiply
    1,377,216x = 2,065,901.76 × 490,752
  4. Step 4: Simplify right side
    1,377,216x = 1,013,845,420,523.52
  5. Step 5: Solve for x
    x = 1,013,845,420,523.52/1,377,216
  6. Step 6: Final answer
    x = 736,155.71

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