Home / 1,143,670.78-1,578,267.24-634,373.16

Finding the Fourth Proportional to 1,143,670.78, 1,578,267.24 and 634,373.16

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Solution

The fourth proportional to 1,143,670.78, 1,578,267.24 and 634,373.16 is: 875,435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,670.78 : 1,578,267.24 = 634,373.16 : x
  2. Step 2: Convert to fraction form
    1,143,670.78/1,578,267.24 = 634,373.16/x
  3. Step 3: Cross multiply
    1,143,670.78x = 1,578,267.24 × 634,373.16
  4. Step 4: Simplify right side
    1,143,670.78x = 1,001,210,376,363.28
  5. Step 5: Solve for x
    x = 1,001,210,376,363.28/1,143,670.78
  6. Step 6: Final answer
    x = 875,435.83

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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.