Home / 1,354,928.20-1,869,666.24-782,152.90

Finding the Fourth Proportional to 1,354,928.20, 1,869,666.24 and 782,152.90

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Solution

The fourth proportional to 1,354,928.20, 1,869,666.24 and 782,152.90 is: 1,079,293.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,928.20 : 1,869,666.24 = 782,152.90 : x
  2. Step 2: Convert to fraction form
    1,354,928.20/1,869,666.24 = 782,152.90/x
  3. Step 3: Cross multiply
    1,354,928.20x = 1,869,666.24 × 782,152.90
  4. Step 4: Simplify right side
    1,354,928.20x = 1,462,364,871,648.10
  5. Step 5: Solve for x
    x = 1,462,364,871,648.10/1,354,928.20
  6. Step 6: Final answer
    x = 1,079,293.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.