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Finding the Fourth Proportional to 630,973.98, 870,732.27 and 359,035.74

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Solution

The fourth proportional to 630,973.98, 870,732.27 and 359,035.74 is: 495,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,973.98 : 870,732.27 = 359,035.74 : x
  2. Step 2: Convert to fraction form
    630,973.98/870,732.27 = 359,035.74/x
  3. Step 3: Cross multiply
    630,973.98x = 870,732.27 × 359,035.74
  4. Step 4: Simplify right side
    630,973.98x = 312,624,004,901.33
  5. Step 5: Solve for x
    x = 312,624,004,901.33/630,973.98
  6. Step 6: Final answer
    x = 495,462.59

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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.