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Finding the Fourth Proportional to 633,278.84, 873,918.26 and 342,885.42

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Solution

The fourth proportional to 633,278.84, 873,918.26 and 342,885.42 is: 473,178.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,278.84 : 873,918.26 = 342,885.42 : x
  2. Step 2: Convert to fraction form
    633,278.84/873,918.26 = 342,885.42/x
  3. Step 3: Cross multiply
    633,278.84x = 873,918.26 × 342,885.42
  4. Step 4: Simplify right side
    633,278.84x = 299,653,829,625.77
  5. Step 5: Solve for x
    x = 299,653,829,625.77/633,278.84
  6. Step 6: Final answer
    x = 473,178.34

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1.5x scale

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.