Home / 1,421,335.60-2,132,003.40-579,428.40

Finding the Fourth Proportional to 1,421,335.60, 2,132,003.40 and 579,428.40

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Solution

The fourth proportional to 1,421,335.60, 2,132,003.40 and 579,428.40 is: 869,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,335.60 : 2,132,003.40 = 579,428.40 : x
  2. Step 2: Convert to fraction form
    1,421,335.60/2,132,003.40 = 579,428.40/x
  3. Step 3: Cross multiply
    1,421,335.60x = 2,132,003.40 × 579,428.40
  4. Step 4: Simplify right side
    1,421,335.60x = 1,235,343,318,856.56
  5. Step 5: Solve for x
    x = 1,235,343,318,856.56/1,421,335.60
  6. Step 6: Final answer
    x = 869,142.60

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1.5x scale

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.