Home / 742,792.78-1,113,904.83-316,061.68

Finding the Fourth Proportional to 742,792.78, 1,113,904.83 and 316,061.68

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Solution

The fourth proportional to 742,792.78, 1,113,904.83 and 316,061.68 is: 473,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,792.78 : 1,113,904.83 = 316,061.68 : x
  2. Step 2: Convert to fraction form
    742,792.78/1,113,904.83 = 316,061.68/x
  3. Step 3: Cross multiply
    742,792.78x = 1,113,904.83 × 316,061.68
  4. Step 4: Simplify right side
    742,792.78x = 352,062,631,929.91
  5. Step 5: Solve for x
    x = 352,062,631,929.91/742,792.78
  6. Step 6: Final answer
    x = 473,971.53

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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.