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Finding the Fourth Proportional to 584,707.72, 806,896.64 and 316,435.72

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Solution

The fourth proportional to 584,707.72, 806,896.64 and 316,435.72 is: 436,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,707.72 : 806,896.64 = 316,435.72 : x
  2. Step 2: Convert to fraction form
    584,707.72/806,896.64 = 316,435.72/x
  3. Step 3: Cross multiply
    584,707.72x = 806,896.64 × 316,435.72
  4. Step 4: Simplify right side
    584,707.72x = 255,330,919,243.98
  5. Step 5: Solve for x
    x = 255,330,919,243.98/584,707.72
  6. Step 6: Final answer
    x = 436,681.29

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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.