Home / 1,143,648.46-1,578,223.47-634,337.74

Finding the Fourth Proportional to 1,143,648.46, 1,578,223.47 and 634,337.74

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Solution

The fourth proportional to 1,143,648.46, 1,578,223.47 and 634,337.74 is: 875,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,648.46 : 1,578,223.47 = 634,337.74 : x
  2. Step 2: Convert to fraction form
    1,143,648.46/1,578,223.47 = 634,337.74/x
  3. Step 3: Cross multiply
    1,143,648.46x = 1,578,223.47 × 634,337.74
  4. Step 4: Simplify right side
    1,143,648.46x = 1,001,126,709,174.76
  5. Step 5: Solve for x
    x = 1,001,126,709,174.76/1,143,648.46
  6. Step 6: Final answer
    x = 875,379.76

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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.