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Finding the Fourth Proportional to 704,730.80, 972,529.13 and 382,440.89

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Solution

The fourth proportional to 704,730.80, 972,529.13 and 382,440.89 is: 527,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,730.80 : 972,529.13 = 382,440.89 : x
  2. Step 2: Convert to fraction form
    704,730.80/972,529.13 = 382,440.89/x
  3. Step 3: Cross multiply
    704,730.80x = 972,529.13 × 382,440.89
  4. Step 4: Simplify right side
    704,730.80x = 371,934,909,415.55
  5. Step 5: Solve for x
    x = 371,934,909,415.55/704,730.80
  6. Step 6: Final answer
    x = 527,768.77

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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.