Home / 2,130,381.30-3,197,386.35-869,114.10

Finding the Fourth Proportional to 2,130,381.30, 3,197,386.35 and 869,114.10

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Solution

The fourth proportional to 2,130,381.30, 3,197,386.35 and 869,114.10 is: 1,304,411.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,381.30 : 3,197,386.35 = 869,114.10 : x
  2. Step 2: Convert to fraction form
    2,130,381.30/3,197,386.35 = 869,114.10/x
  3. Step 3: Cross multiply
    2,130,381.30x = 3,197,386.35 × 869,114.10
  4. Step 4: Simplify right side
    2,130,381.30x = 2,778,893,559,932.54
  5. Step 5: Solve for x
    x = 2,778,893,559,932.54/2,130,381.30
  6. Step 6: Final answer
    x = 1,304,411.36

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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.