Home / 762,130.61-1,143,638.78-341,406.48

Finding the Fourth Proportional to 762,130.61, 1,143,638.78 and 341,406.48

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Solution

The fourth proportional to 762,130.61, 1,143,638.78 and 341,406.48 is: 512,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,130.61 : 1,143,638.78 = 341,406.48 : x
  2. Step 2: Convert to fraction form
    762,130.61/1,143,638.78 = 341,406.48/x
  3. Step 3: Cross multiply
    762,130.61x = 1,143,638.78 × 341,406.48
  4. Step 4: Simplify right side
    762,130.61x = 390,445,688,564.26
  5. Step 5: Solve for x
    x = 390,445,688,564.26/762,130.61
  6. Step 6: Final answer
    x = 512,308.11

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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.