Home / 2,106,001.80-3,159,002.70-686,201.40

Finding the Fourth Proportional to 2,106,001.80, 3,159,002.70 and 686,201.40

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Solution

The fourth proportional to 2,106,001.80, 3,159,002.70 and 686,201.40 is: 1,029,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,001.80 : 3,159,002.70 = 686,201.40 : x
  2. Step 2: Convert to fraction form
    2,106,001.80/3,159,002.70 = 686,201.40/x
  3. Step 3: Cross multiply
    2,106,001.80x = 3,159,002.70 × 686,201.40
  4. Step 4: Simplify right side
    2,106,001.80x = 2,167,712,075,343.78
  5. Step 5: Solve for x
    x = 2,167,712,075,343.78/2,106,001.80
  6. Step 6: Final answer
    x = 1,029,302.10

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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.