Home / 1,380,029.32-1,904,437.38-776,417.32

Finding the Fourth Proportional to 1,380,029.32, 1,904,437.38 and 776,417.32

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Solution

The fourth proportional to 1,380,029.32, 1,904,437.38 and 776,417.32 is: 1,071,454.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,029.32 : 1,904,437.38 = 776,417.32 : x
  2. Step 2: Convert to fraction form
    1,380,029.32/1,904,437.38 = 776,417.32/x
  3. Step 3: Cross multiply
    1,380,029.32x = 1,904,437.38 × 776,417.32
  4. Step 4: Simplify right side
    1,380,029.32x = 1,478,638,166,687.42
  5. Step 5: Solve for x
    x = 1,478,638,166,687.42/1,380,029.32
  6. Step 6: Final answer
    x = 1,071,454.17

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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.