Home / 1,478,603.20-2,040,484.64-816,336.40

Finding the Fourth Proportional to 1,478,603.20, 2,040,484.64 and 816,336.40

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Solution

The fourth proportional to 1,478,603.20, 2,040,484.64 and 816,336.40 is: 1,126,550.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,603.20 : 2,040,484.64 = 816,336.40 : x
  2. Step 2: Convert to fraction form
    1,478,603.20/2,040,484.64 = 816,336.40/x
  3. Step 3: Cross multiply
    1,478,603.20x = 2,040,484.64 × 816,336.40
  4. Step 4: Simplify right side
    1,478,603.20x = 1,665,721,885,272.90
  5. Step 5: Solve for x
    x = 1,665,721,885,272.90/1,478,603.20
  6. Step 6: Final answer
    x = 1,126,550.98

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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.