Home / 778,827.60-1,168,399.35-442,029.60

Finding the Fourth Proportional to 778,827.60, 1,168,399.35 and 442,029.60

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Solution

The fourth proportional to 778,827.60, 1,168,399.35 and 442,029.60 is: 663,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,827.60 : 1,168,399.35 = 442,029.60 : x
  2. Step 2: Convert to fraction form
    778,827.60/1,168,399.35 = 442,029.60/x
  3. Step 3: Cross multiply
    778,827.60x = 1,168,399.35 × 442,029.60
  4. Step 4: Simplify right side
    778,827.60x = 516,467,097,320.76
  5. Step 5: Solve for x
    x = 516,467,097,320.76/778,827.60
  6. Step 6: Final answer
    x = 663,134.05

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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.