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Finding the Fourth Proportional to 704,573.61, 972,208.20 and 394,460.16

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Solution

The fourth proportional to 704,573.61, 972,208.20 and 394,460.16 is: 544,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,573.61 : 972,208.20 = 394,460.16 : x
  2. Step 2: Convert to fraction form
    704,573.61/972,208.20 = 394,460.16/x
  3. Step 3: Cross multiply
    704,573.61x = 972,208.20 × 394,460.16
  4. Step 4: Simplify right side
    704,573.61x = 383,497,402,125.31
  5. Step 5: Solve for x
    x = 383,497,402,125.31/704,573.61
  6. Step 6: Final answer
    x = 544,297.14

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1.5x scale

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.