Home / 778,858.10-1,168,445.10-442,060.10

Finding the Fourth Proportional to 778,858.10, 1,168,445.10 and 442,060.10

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Solution

The fourth proportional to 778,858.10, 1,168,445.10 and 442,060.10 is: 663,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,858.10 : 1,168,445.10 = 442,060.10 : x
  2. Step 2: Convert to fraction form
    778,858.10/1,168,445.10 = 442,060.10/x
  3. Step 3: Cross multiply
    778,858.10x = 1,168,445.10 × 442,060.10
  4. Step 4: Simplify right side
    778,858.10x = 516,522,957,750.51
  5. Step 5: Solve for x
    x = 516,522,957,750.51/778,858.10
  6. Step 6: Final answer
    x = 663,179.80

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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.