Home / 742,334.89-1,113,398.66-316,041.61

Finding the Fourth Proportional to 742,334.89, 1,113,398.66 and 316,041.61

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Solution

The fourth proportional to 742,334.89, 1,113,398.66 and 316,041.61 is: 474,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,334.89 : 1,113,398.66 = 316,041.61 : x
  2. Step 2: Convert to fraction form
    742,334.89/1,113,398.66 = 316,041.61/x
  3. Step 3: Cross multiply
    742,334.89x = 1,113,398.66 × 316,041.61
  4. Step 4: Simplify right side
    742,334.89x = 351,880,303,498.04
  5. Step 5: Solve for x
    x = 351,880,303,498.04/742,334.89
  6. Step 6: Final answer
    x = 474,018.27

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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.