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Finding the Fourth Proportional to 500,587.84, 690,620.56 and 370,078.84

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Solution

The fourth proportional to 500,587.84, 690,620.56 and 370,078.84 is: 510,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,587.84 : 690,620.56 = 370,078.84 : x
  2. Step 2: Convert to fraction form
    500,587.84/690,620.56 = 370,078.84/x
  3. Step 3: Cross multiply
    500,587.84x = 690,620.56 × 370,078.84
  4. Step 4: Simplify right side
    500,587.84x = 255,584,055,724.95
  5. Step 5: Solve for x
    x = 255,584,055,724.95/500,587.84
  6. Step 6: Final answer
    x = 510,567.85

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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.