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Finding the Fourth Proportional to 561,833.84, 775,325.40 and 307,182.32

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Solution

The fourth proportional to 561,833.84, 775,325.40 and 307,182.32 is: 423,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,833.84 : 775,325.40 = 307,182.32 : x
  2. Step 2: Convert to fraction form
    561,833.84/775,325.40 = 307,182.32/x
  3. Step 3: Cross multiply
    561,833.84x = 775,325.40 × 307,182.32
  4. Step 4: Simplify right side
    561,833.84x = 238,166,255,126.93
  5. Step 5: Solve for x
    x = 238,166,255,126.93/561,833.84
  6. Step 6: Final answer
    x = 423,908.70

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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.