Home / 879,291.60-1,213,444.14-492,103.92

Finding the Fourth Proportional to 879,291.60, 1,213,444.14 and 492,103.92

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Solution

The fourth proportional to 879,291.60, 1,213,444.14 and 492,103.92 is: 679,115.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,291.60 : 1,213,444.14 = 492,103.92 : x
  2. Step 2: Convert to fraction form
    879,291.60/1,213,444.14 = 492,103.92/x
  3. Step 3: Cross multiply
    879,291.60x = 1,213,444.14 × 492,103.92
  4. Step 4: Simplify right side
    879,291.60x = 597,140,617,995.03
  5. Step 5: Solve for x
    x = 597,140,617,995.03/879,291.60
  6. Step 6: Final answer
    x = 679,115.57

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1.5x scale

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.