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Finding the Fourth Proportional to 568,875.39, 785,041.25 and 310,749.18

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Solution

The fourth proportional to 568,875.39, 785,041.25 and 310,749.18 is: 428,830.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,875.39 : 785,041.25 = 310,749.18 : x
  2. Step 2: Convert to fraction form
    568,875.39/785,041.25 = 310,749.18/x
  3. Step 3: Cross multiply
    568,875.39x = 785,041.25 × 310,749.18
  4. Step 4: Simplify right side
    568,875.39x = 243,950,923,149.93
  5. Step 5: Solve for x
    x = 243,950,923,149.93/568,875.39
  6. Step 6: Final answer
    x = 428,830.16

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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.