Home / 742,712.94-1,113,890.22-342,969.48

Finding the Fourth Proportional to 742,712.94, 1,113,890.22 and 342,969.48

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Solution

The fourth proportional to 742,712.94, 1,113,890.22 and 342,969.48 is: 514,371.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,712.94 : 1,113,890.22 = 342,969.48 : x
  2. Step 2: Convert to fraction form
    742,712.94/1,113,890.22 = 342,969.48/x
  3. Step 3: Cross multiply
    742,712.94x = 1,113,890.22 × 342,969.48
  4. Step 4: Simplify right side
    742,712.94x = 382,030,349,530.49
  5. Step 5: Solve for x
    x = 382,030,349,530.49/742,712.94
  6. Step 6: Final answer
    x = 514,371.47

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1.5x scale

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.