Home / 742,753.19-1,114,543.74-401,189.71

Finding the Fourth Proportional to 742,753.19, 1,114,543.74 and 401,189.71

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Solution

The fourth proportional to 742,753.19, 1,114,543.74 and 401,189.71 is: 602,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,753.19 : 1,114,543.74 = 401,189.71 : x
  2. Step 2: Convert to fraction form
    742,753.19/1,114,543.74 = 401,189.71/x
  3. Step 3: Cross multiply
    742,753.19x = 1,114,543.74 × 401,189.71
  4. Step 4: Simplify right side
    742,753.19x = 447,143,479,721.63
  5. Step 5: Solve for x
    x = 447,143,479,721.63/742,753.19
  6. Step 6: Final answer
    x = 602,008.16

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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.