Home / 438,828.60-605,552.04-257,547.90

Finding the Fourth Proportional to 438,828.60, 605,552.04 and 257,547.90

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Solution

The fourth proportional to 438,828.60, 605,552.04 and 257,547.90 is: 355,397.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,828.60 : 605,552.04 = 257,547.90 : x
  2. Step 2: Convert to fraction form
    438,828.60/605,552.04 = 257,547.90/x
  3. Step 3: Cross multiply
    438,828.60x = 605,552.04 × 257,547.90
  4. Step 4: Simplify right side
    438,828.60x = 155,958,656,242.72
  5. Step 5: Solve for x
    x = 155,958,656,242.72/438,828.60
  6. Step 6: Final answer
    x = 355,397.66

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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.