Home / 771,476.27-1,156,889.79-291,623.36

Finding the Fourth Proportional to 771,476.27, 1,156,889.79 and 291,623.36

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Solution

The fourth proportional to 771,476.27, 1,156,889.79 and 291,623.36 is: 437,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,476.27 : 1,156,889.79 = 291,623.36 : x
  2. Step 2: Convert to fraction form
    771,476.27/1,156,889.79 = 291,623.36/x
  3. Step 3: Cross multiply
    771,476.27x = 1,156,889.79 × 291,623.36
  4. Step 4: Simplify right side
    771,476.27x = 337,376,081,925.05
  5. Step 5: Solve for x
    x = 337,376,081,925.05/771,476.27
  6. Step 6: Final answer
    x = 437,312.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.