Home / 778,921.60-1,168,382.40-498,985.60

Finding the Fourth Proportional to 778,921.60, 1,168,382.40 and 498,985.60

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Solution

The fourth proportional to 778,921.60, 1,168,382.40 and 498,985.60 is: 748,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,921.60 : 1,168,382.40 = 498,985.60 : x
  2. Step 2: Convert to fraction form
    778,921.60/1,168,382.40 = 498,985.60/x
  3. Step 3: Cross multiply
    778,921.60x = 1,168,382.40 × 498,985.60
  4. Step 4: Simplify right side
    778,921.60x = 583,005,992,893.44
  5. Step 5: Solve for x
    x = 583,005,992,893.44/778,921.60
  6. Step 6: Final answer
    x = 748,478.40

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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.