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Finding the Fourth Proportional to 611,508.84, 843,746.31 and 369,786.35

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Solution

The fourth proportional to 611,508.84, 843,746.31 and 369,786.35 is: 510,222.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,508.84 : 843,746.31 = 369,786.35 : x
  2. Step 2: Convert to fraction form
    611,508.84/843,746.31 = 369,786.35/x
  3. Step 3: Cross multiply
    611,508.84x = 843,746.31 × 369,786.35
  4. Step 4: Simplify right side
    611,508.84x = 312,005,864,082.14
  5. Step 5: Solve for x
    x = 312,005,864,082.14/611,508.84
  6. Step 6: Final answer
    x = 510,222.98

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Double scale
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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.