Home / 778,513.04-1,074,347.52-420,817.04

Finding the Fourth Proportional to 778,513.04, 1,074,347.52 and 420,817.04

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Solution

The fourth proportional to 778,513.04, 1,074,347.52 and 420,817.04 is: 580,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,513.04 : 1,074,347.52 = 420,817.04 : x
  2. Step 2: Convert to fraction form
    778,513.04/1,074,347.52 = 420,817.04/x
  3. Step 3: Cross multiply
    778,513.04x = 1,074,347.52 × 420,817.04
  4. Step 4: Simplify right side
    778,513.04x = 452,103,743,297.74
  5. Step 5: Solve for x
    x = 452,103,743,297.74/778,513.04
  6. Step 6: Final answer
    x = 580,727.26

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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.