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Finding the Fourth Proportional to 613,822.51, 847,117.65 and 372,115.27

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Solution

The fourth proportional to 613,822.51, 847,117.65 and 372,115.27 is: 513,544.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,822.51 : 847,117.65 = 372,115.27 : x
  2. Step 2: Convert to fraction form
    613,822.51/847,117.65 = 372,115.27/x
  3. Step 3: Cross multiply
    613,822.51x = 847,117.65 × 372,115.27
  4. Step 4: Simplify right side
    613,822.51x = 315,225,413,051.52
  5. Step 5: Solve for x
    x = 315,225,413,051.52/613,822.51
  6. Step 6: Final answer
    x = 513,544.89

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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.