Home / 778,857.10-1,168,443.60-442,059.10

Finding the Fourth Proportional to 778,857.10, 1,168,443.60 and 442,059.10

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Solution

The fourth proportional to 778,857.10, 1,168,443.60 and 442,059.10 is: 663,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,857.10 : 1,168,443.60 = 442,059.10 : x
  2. Step 2: Convert to fraction form
    778,857.10/1,168,443.60 = 442,059.10/x
  3. Step 3: Cross multiply
    778,857.10x = 1,168,443.60 × 442,059.10
  4. Step 4: Simplify right side
    778,857.10x = 516,521,126,216.76
  5. Step 5: Solve for x
    x = 516,521,126,216.76/778,857.10
  6. Step 6: Final answer
    x = 663,178.30

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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.