Home / 778,404.90-1,074,206.94-451,790.13

Finding the Fourth Proportional to 778,404.90, 1,074,206.94 and 451,790.13

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Solution

The fourth proportional to 778,404.90, 1,074,206.94 and 451,790.13 is: 623,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,404.90 : 1,074,206.94 = 451,790.13 : x
  2. Step 2: Convert to fraction form
    778,404.90/1,074,206.94 = 451,790.13/x
  3. Step 3: Cross multiply
    778,404.90x = 1,074,206.94 × 451,790.13
  4. Step 4: Simplify right side
    778,404.90x = 485,316,093,069.50
  5. Step 5: Solve for x
    x = 485,316,093,069.50/778,404.90
  6. Step 6: Final answer
    x = 623,475.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.