Home / 357,362.04-492,973.47-289,455.69

Finding the Fourth Proportional to 357,362.04, 492,973.47 and 289,455.69

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Solution

The fourth proportional to 357,362.04, 492,973.47 and 289,455.69 is: 399,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,362.04 : 492,973.47 = 289,455.69 : x
  2. Step 2: Convert to fraction form
    357,362.04/492,973.47 = 289,455.69/x
  3. Step 3: Cross multiply
    357,362.04x = 492,973.47 × 289,455.69
  4. Step 4: Simplify right side
    357,362.04x = 142,693,975,910.54
  5. Step 5: Solve for x
    x = 142,693,975,910.54/357,362.04
  6. Step 6: Final answer
    x = 399,298.08

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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.