Home / 687,423.01-1,031,073.93-308,241.98

Finding the Fourth Proportional to 687,423.01, 1,031,073.93 and 308,241.98

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Solution

The fourth proportional to 687,423.01, 1,031,073.93 and 308,241.98 is: 462,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,423.01 : 1,031,073.93 = 308,241.98 : x
  2. Step 2: Convert to fraction form
    687,423.01/1,031,073.93 = 308,241.98/x
  3. Step 3: Cross multiply
    687,423.01x = 1,031,073.93 × 308,241.98
  4. Step 4: Simplify right side
    687,423.01x = 317,820,264,554.21
  5. Step 5: Solve for x
    x = 317,820,264,554.21/687,423.01
  6. Step 6: Final answer
    x = 462,335.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.