Home / 742,335.89-1,113,400.16-316,042.61

Finding the Fourth Proportional to 742,335.89, 1,113,400.16 and 316,042.61

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Solution

The fourth proportional to 742,335.89, 1,113,400.16 and 316,042.61 is: 474,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,335.89 : 1,113,400.16 = 316,042.61 : x
  2. Step 2: Convert to fraction form
    742,335.89/1,113,400.16 = 316,042.61/x
  3. Step 3: Cross multiply
    742,335.89x = 1,113,400.16 × 316,042.61
  4. Step 4: Simplify right side
    742,335.89x = 351,881,890,960.61
  5. Step 5: Solve for x
    x = 351,881,890,960.61/742,335.89
  6. Step 6: Final answer
    x = 474,019.77

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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.