Home / 1,145,378.10-1,580,578.48-636,113.28

Finding the Fourth Proportional to 1,145,378.10, 1,580,578.48 and 636,113.28

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Solution

The fourth proportional to 1,145,378.10, 1,580,578.48 and 636,113.28 is: 877,812.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,378.10 : 1,580,578.48 = 636,113.28 : x
  2. Step 2: Convert to fraction form
    1,145,378.10/1,580,578.48 = 636,113.28/x
  3. Step 3: Cross multiply
    1,145,378.10x = 1,580,578.48 × 636,113.28
  4. Step 4: Simplify right side
    1,145,378.10x = 1,005,426,961,210.21
  5. Step 5: Solve for x
    x = 1,005,426,961,210.21/1,145,378.10
  6. Step 6: Final answer
    x = 877,812.28

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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.