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Finding the Fourth Proportional to 642,035.90, 963,127.67 and 375,798.71

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Solution

The fourth proportional to 642,035.90, 963,127.67 and 375,798.71 is: 563,741.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,035.90 : 963,127.67 = 375,798.71 : x
  2. Step 2: Convert to fraction form
    642,035.90/963,127.67 = 375,798.71/x
  3. Step 3: Cross multiply
    642,035.90x = 963,127.67 × 375,798.71
  4. Step 4: Simplify right side
    642,035.90x = 361,942,129,256.67
  5. Step 5: Solve for x
    x = 361,942,129,256.67/642,035.90
  6. Step 6: Final answer
    x = 563,741.27

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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.