Home / 385,848.62-578,564.17-306,397.73

Finding the Fourth Proportional to 385,848.62, 578,564.17 and 306,397.73

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Solution

The fourth proportional to 385,848.62, 578,564.17 and 306,397.73 is: 459,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,848.62 : 578,564.17 = 306,397.73 : x
  2. Step 2: Convert to fraction form
    385,848.62/578,564.17 = 306,397.73/x
  3. Step 3: Cross multiply
    385,848.62x = 578,564.17 × 306,397.73
  4. Step 4: Simplify right side
    385,848.62x = 177,270,748,347.33
  5. Step 5: Solve for x
    x = 177,270,748,347.33/385,848.62
  6. Step 6: Final answer
    x = 459,430.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.