Home / 1,687,347-2,531,029.50-690,075

Finding the Fourth Proportional to 1,687,347, 2,531,029.50 and 690,075

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Solution

The fourth proportional to 1,687,347, 2,531,029.50 and 690,075 is: 1,035,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,347 : 2,531,029.50 = 690,075 : x
  2. Step 2: Convert to fraction form
    1,687,347/2,531,029.50 = 690,075/x
  3. Step 3: Cross multiply
    1,687,347x = 2,531,029.50 × 690,075
  4. Step 4: Simplify right side
    1,687,347x = 1,746,600,182,212.50
  5. Step 5: Solve for x
    x = 1,746,600,182,212.50/1,687,347
  6. Step 6: Final answer
    x = 1,035,116.18

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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.