Home / 1,421,334.60-2,132,001.90-579,427.40

Finding the Fourth Proportional to 1,421,334.60, 2,132,001.90 and 579,427.40

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Solution

The fourth proportional to 1,421,334.60, 2,132,001.90 and 579,427.40 is: 869,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,334.60 : 2,132,001.90 = 579,427.40 : x
  2. Step 2: Convert to fraction form
    1,421,334.60/2,132,001.90 = 579,427.40/x
  3. Step 3: Cross multiply
    1,421,334.60x = 2,132,001.90 × 579,427.40
  4. Step 4: Simplify right side
    1,421,334.60x = 1,235,340,317,712.06
  5. Step 5: Solve for x
    x = 1,235,340,317,712.06/1,421,334.60
  6. Step 6: Final answer
    x = 869,141.10

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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.