Home / 379,730.48-524,038.56-209,970.68

Finding the Fourth Proportional to 379,730.48, 524,038.56 and 209,970.68

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Solution

The fourth proportional to 379,730.48, 524,038.56 and 209,970.68 is: 289,765.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,730.48 : 524,038.56 = 209,970.68 : x
  2. Step 2: Convert to fraction form
    379,730.48/524,038.56 = 209,970.68/x
  3. Step 3: Cross multiply
    379,730.48x = 524,038.56 × 209,970.68
  4. Step 4: Simplify right side
    379,730.48x = 110,032,732,789.42
  5. Step 5: Solve for x
    x = 110,032,732,789.42/379,730.48
  6. Step 6: Final answer
    x = 289,765.34

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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.