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Finding the Fourth Proportional to 577,495.29, 796,948.80 and 319,358.90

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Solution

The fourth proportional to 577,495.29, 796,948.80 and 319,358.90 is: 440,718.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,495.29 : 796,948.80 = 319,358.90 : x
  2. Step 2: Convert to fraction form
    577,495.29/796,948.80 = 319,358.90/x
  3. Step 3: Cross multiply
    577,495.29x = 796,948.80 × 319,358.90
  4. Step 4: Simplify right side
    577,495.29x = 254,512,688,139.58
  5. Step 5: Solve for x
    x = 254,512,688,139.58/577,495.29
  6. Step 6: Final answer
    x = 440,718.21

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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.