Home / 1,143,438.60-1,578,042.18-634,305

Finding the Fourth Proportional to 1,143,438.60, 1,578,042.18 and 634,305

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Solution

The fourth proportional to 1,143,438.60, 1,578,042.18 and 634,305 is: 875,394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,438.60 : 1,578,042.18 = 634,305 : x
  2. Step 2: Convert to fraction form
    1,143,438.60/1,578,042.18 = 634,305/x
  3. Step 3: Cross multiply
    1,143,438.60x = 1,578,042.18 × 634,305
  4. Step 4: Simplify right side
    1,143,438.60x = 1,000,960,044,984.90
  5. Step 5: Solve for x
    x = 1,000,960,044,984.90/1,143,438.60
  6. Step 6: Final answer
    x = 875,394.66

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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.