Home / 687,948.80-1,031,874.60-238,560.80

Finding the Fourth Proportional to 687,948.80, 1,031,874.60 and 238,560.80

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Solution

The fourth proportional to 687,948.80, 1,031,874.60 and 238,560.80 is: 357,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,948.80 : 1,031,874.60 = 238,560.80 : x
  2. Step 2: Convert to fraction form
    687,948.80/1,031,874.60 = 238,560.80/x
  3. Step 3: Cross multiply
    687,948.80x = 1,031,874.60 × 238,560.80
  4. Step 4: Simplify right side
    687,948.80x = 246,164,830,075.68
  5. Step 5: Solve for x
    x = 246,164,830,075.68/687,948.80
  6. Step 6: Final answer
    x = 357,824.35

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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.