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Finding the Fourth Proportional to 704,730.20, 972,534.80 and 382,443.08

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Solution

The fourth proportional to 704,730.20, 972,534.80 and 382,443.08 is: 527,775.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,730.20 : 972,534.80 = 382,443.08 : x
  2. Step 2: Convert to fraction form
    704,730.20/972,534.80 = 382,443.08/x
  3. Step 3: Cross multiply
    704,730.20x = 972,534.80 × 382,443.08
  4. Step 4: Simplify right side
    704,730.20x = 371,939,200,412.62
  5. Step 5: Solve for x
    x = 371,939,200,412.62/704,730.20
  6. Step 6: Final answer
    x = 527,775.31

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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.