Home / 1,379,726.10-1,904,019.21-776,114.10

Finding the Fourth Proportional to 1,379,726.10, 1,904,019.21 and 776,114.10

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Solution

The fourth proportional to 1,379,726.10, 1,904,019.21 and 776,114.10 is: 1,071,035.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,726.10 : 1,904,019.21 = 776,114.10 : x
  2. Step 2: Convert to fraction form
    1,379,726.10/1,904,019.21 = 776,114.10/x
  3. Step 3: Cross multiply
    1,379,726.10x = 1,904,019.21 × 776,114.10
  4. Step 4: Simplify right side
    1,379,726.10x = 1,477,736,155,551.86
  5. Step 5: Solve for x
    x = 1,477,736,155,551.86/1,379,726.10
  6. Step 6: Final answer
    x = 1,071,035.88

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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.