Home / 633,484.02-873,876.51-391,689.30

Finding the Fourth Proportional to 633,484.02, 873,876.51 and 391,689.30

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Solution

The fourth proportional to 633,484.02, 873,876.51 and 391,689.30 is: 540,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,484.02 : 873,876.51 = 391,689.30 : x
  2. Step 2: Convert to fraction form
    633,484.02/873,876.51 = 391,689.30/x
  3. Step 3: Cross multiply
    633,484.02x = 873,876.51 × 391,689.30
  4. Step 4: Simplify right side
    633,484.02x = 342,288,078,488.34
  5. Step 5: Solve for x
    x = 342,288,078,488.34/633,484.02
  6. Step 6: Final answer
    x = 540,326.30

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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.