Home / 778,317.39-1,167,379.49-209,742.95

Finding the Fourth Proportional to 778,317.39, 1,167,379.49 and 209,742.95

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Solution

The fourth proportional to 778,317.39, 1,167,379.49 and 209,742.95 is: 314,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,317.39 : 1,167,379.49 = 209,742.95 : x
  2. Step 2: Convert to fraction form
    778,317.39/1,167,379.49 = 209,742.95/x
  3. Step 3: Cross multiply
    778,317.39x = 1,167,379.49 × 209,742.95
  4. Step 4: Simplify right side
    778,317.39x = 244,849,621,444.90
  5. Step 5: Solve for x
    x = 244,849,621,444.90/778,317.39
  6. Step 6: Final answer
    x = 314,588.40

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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.