Home / 742,158-1,113,309.90-209,683.17

Finding the Fourth Proportional to 742,158, 1,113,309.90 and 209,683.17

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Solution

The fourth proportional to 742,158, 1,113,309.90 and 209,683.17 is: 314,545.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,158 : 1,113,309.90 = 209,683.17 : x
  2. Step 2: Convert to fraction form
    742,158/1,113,309.90 = 209,683.17/x
  3. Step 3: Cross multiply
    742,158x = 1,113,309.90 × 209,683.17
  4. Step 4: Simplify right side
    742,158x = 233,442,349,024.38
  5. Step 5: Solve for x
    x = 233,442,349,024.38/742,158
  6. Step 6: Final answer
    x = 314,545.35

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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.